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

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