Add 21/98 and 12/8
1st number: 21/98, 2nd number: 1 4/8
21/98 + 12/8 is 12/7.
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,
12/8 = 12 × 49/8 × 49 = 588/392 - Add the two like fractions:
84/392 + 588/392 = 84 + 588/392 = 672/392 - 672/392 simplified gives 12/7
- So, 21/98 + 12/8 = 12/7
In mixed form: 15/7
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