Tommy, Anna and Jacob all have 40 sweets. they decide to split the sweets between each other in the ratio 1:4:5. Calculate how many sweets each get, rounding down your answer where necessary.
1+4+5=10. 40/10 = 4. 1 x 4= 4 = 4 sweets for Tommy. 4 x 4 = 16 sweets for Anna. 5 x 4 = 20 sweets for Jacob
