Work out 2 1/7 + 1 1/4.

It is important to notice that this is the addition of two mixed fractions which firstly needs to be changed into improper fractions. Take 2 1/7 - first multiply the denominator by the whole number to give 14 and now add the numerator to this number to get 15 - the fraction in improper form is 15/7. Do the same process with 1 1/4 - so 4 x 1 = 4 and now 4 + 1 = 5 - the new fraction is 5/4. We now have to add the two improper fractions together. To do this we need the denominator to be the same in both fractions. We find the lowest common multiple of 4 and 7 which is simply 28. For 15/7 we multiply the top and bottom of the fraction by 4 to give 60/28 and for 5/4 we multiply the top and bottom of the fraction by 7 to give 35/28 Finally we can add the two fractions together by keeping the denominator as 28 and simply adding the two numerators together to give 95/28. This number cannot be simplified further.

GH
Answered by Georgia H. Maths tutor

29661 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

x/(2x-3) + 4/(x+1) =1 [5 mark question]


Simplify 7 × e × f × 8


Solve algebraically the simultaneous equations (x^2) + (y^2) =25 and y - 3x = 13 (5 Marks).


Solve simultaneously 2x+3y=8, 3x+2y=7 to calculate values of x and y.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences