Add 30/42 and 70/15, Solve 30/42 + 4 10/15 as a fraction

Add 30/42 and 70/15

1^st number: 30/42, 2^nd number: 4 10/15

30/42 + 70/15 is 113/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
30/42 = 30 × 5/42 × 5 = 150/210
Likewise, for the 2nd fraction, since 15 × 14 = 210,
70/15 = 70 × 14/15 × 14 = 980/210
Add the two like fractions:
150/210 + 980/210 = 150 + 980/210 = 1130/210
1130/210 simplified gives 113/21
So, 30/42 + 70/15 = 113/21
In mixed form: 58/21

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