Add 42/98 and 72/21
1st number: 42/98, 2nd number: 3 9/21
42/98 + 72/21 is 27/7.
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,
72/21 = 72 × 14/21 × 14 = 1008/294 - Add the two like fractions:
126/294 + 1008/294 = 126 + 1008/294 = 1134/294 - 1134/294 simplified gives 27/7
- So, 42/98 + 72/21 = 27/7
In mixed form: 36/7
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