Question

adam bought a box of fruit that weighed six and three eights if he brought asecond box that weighed 7and two fifth kilograms what is the combined weight of both boxes

Answer 1

6 and 3/8

7 and 2/5
combine

you can just add the whole numbers
6+7=13

then add the confusing ones
3/8 +2/5
convert the bottom number to the same number

the number is 40
multiply 3/8 by 5/5=15/40
multiply 2/5 by 8/8=16/40

add
15/40+16/40=31/40
the naswer is 13 and 31/40