Add 21/10 and 7/42, Solve 2 1/10 + 7/42 as a fraction

Add 21/10 and 7/42

1^st number: 2 1/10, 2^nd number: 7/42

21/10 + 7/42 is 34/15.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
21/10 = 21 × 21/10 × 21 = 441/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
7/42 = 7 × 5/42 × 5 = 35/210
Add the two like fractions:
441/210 + 35/210 = 441 + 35/210 = 476/210
476/210 simplified gives 34/15
So, 21/10 + 7/42 = 34/15
In mixed form: 24/15

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