Add 30/42 and 70/30, Solve 30/42 + 2 10/30 as a fraction

Add 30/42 and 70/30

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

30/42 + 70/30 is 64/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 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 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210
Add the two like fractions:
150/210 + 490/210 = 150 + 490/210 = 640/210
640/210 simplified gives 64/21
So, 30/42 + 70/30 = 64/21
In mixed form: 31/21

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