Add 30/42 and 56/35, Solve 30/42 + 1 21/35 as a fraction

Add 30/42 and 56/35

1^st number: 30/42, 2^nd number: 1 21/35

30/42 + 56/35 is 81/35.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 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 35 × 6 = 210,
56/35 = 56 × 6/35 × 6 = 336/210
Add the two like fractions:
150/210 + 336/210 = 150 + 336/210 = 486/210
486/210 simplified gives 81/35
So, 30/42 + 56/35 = 81/35
In mixed form: 211/35

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