Add 21/49 and 15/8
1st number: 21/49, 2nd number: 1 7/8
21/49 + 15/8 is 129/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
21/49 = 21 × 8/49 × 8 = 168/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
15/8 = 15 × 49/8 × 49 = 735/392 - Add the two like fractions:
168/392 + 735/392 = 168 + 735/392 = 903/392 - 903/392 simplified gives 129/56
- So, 21/49 + 15/8 = 129/56
In mixed form: 217/56
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