Add 27/21 and 21/49, Solve 1 6/21 + 21/49 as a fraction

Add 27/21 and 21/49

1^st number: 1 6/21, 2^nd number: 21/49

27/21 + 21/49 is 12/7.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147

Next, find the equivalent fraction of both fractional numbers with denominator 147
For the 1st fraction, since 21 × 7 = 147,
27/21 = 27 × 7/21 × 7 = 189/147
Likewise, for the 2nd fraction, since 49 × 3 = 147,
21/49 = 21 × 3/49 × 3 = 63/147
Add the two like fractions:
189/147 + 63/147 = 189 + 63/147 = 252/147
252/147 simplified gives 12/7
So, 27/21 + 21/49 = 12/7
In mixed form: 15/7

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