Add 14/21 and 42/30, Solve 14/21 + 1 12/30 as a fraction

Add 14/21 and 42/30

1^st number: 14/21, 2^nd number: 1 12/30

14/21 + 42/30 is 31/15.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
42/30 = 42 × 7/30 × 7 = 294/210
Add the two like fractions:
140/210 + 294/210 = 140 + 294/210 = 434/210
434/210 simplified gives 31/15
So, 14/21 + 42/30 = 31/15
In mixed form: 21/15

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