Add 10/7 and 81/30, Solve 1 3/7 + 2 21/30 as a fraction

Add 10/7 and 81/30

1^st number: 1 3/7, 2^nd number: 2 21/30

10/7 + 81/30 is 289/70.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 7 × 30 = 210,
10/7 = 10 × 30/7 × 30 = 300/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
81/30 = 81 × 7/30 × 7 = 567/210
Add the two like fractions:
300/210 + 567/210 = 300 + 567/210 = 867/210
867/210 simplified gives 289/70
So, 10/7 + 81/30 = 289/70
In mixed form: 49/70

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