Add 7/21 and 72/30, Solve 7/21 + 2 12/30 as a fraction

Add 7/21 and 72/30

1^st number: 7/21, 2^nd number: 2 12/30

7/21 + 72/30 is 41/15.

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,
7/21 = 7 × 10/21 × 10 = 70/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
72/30 = 72 × 7/30 × 7 = 504/210
Add the two like fractions:
70/210 + 504/210 = 70 + 504/210 = 574/210
574/210 simplified gives 41/15
So, 7/21 + 72/30 = 41/15
In mixed form: 211/15

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