Add 21/98 and 7/8
21/98 + 7/8 is 61/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 98 × 4 = 392,
21/98 = 21 × 4/98 × 4 = 84/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
7/8 = 7 × 49/8 × 49 = 343/392 - Add the two like fractions:
84/392 + 343/392 = 84 + 343/392 = 427/392 - 427/392 simplified gives 61/56
- So, 21/98 + 7/8 = 61/56
In mixed form: 15/56
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