Add 42/98 and 81/21
1st number: 42/98, 2nd number: 3 18/21
42/98 + 81/21 is 30/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 21 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 98 × 3 = 294,
42/98 = 42 × 3/98 × 3 = 126/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
81/21 = 81 × 14/21 × 14 = 1134/294 - Add the two like fractions:
126/294 + 1134/294 = 126 + 1134/294 = 1260/294 - 1260/294 simplified gives 30/7
- So, 42/98 + 81/21 = 30/7
In mixed form: 42/7
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