Add 10/42 and 25/7, Solve 10/42 + 3 4/7 as a fraction

Add 10/42 and 25/7

1^st number: 10/42, 2^nd number: 3 4/7

10/42 + 25/7 is 80/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 42 × 1 = 42,
10/42 = 10 × 1/42 × 1 = 10/42
Likewise, for the 2nd fraction, since 7 × 6 = 42,
25/7 = 25 × 6/7 × 6 = 150/42
Add the two like fractions:
10/42 + 150/42 = 10 + 150/42 = 160/42
160/42 simplified gives 80/21
So, 10/42 + 25/7 = 80/21
In mixed form: 317/21

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