Add 72/21 and 21/98
1st number: 3 9/21, 2nd number: 21/98
72/21 + 21/98 is 51/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 21 × 14 = 294,
72/21 = 72 × 14/21 × 14 = 1008/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
21/98 = 21 × 3/98 × 3 = 63/294 - Add the two like fractions:
1008/294 + 63/294 = 1008 + 63/294 = 1071/294 - 1071/294 simplified gives 51/14
- So, 72/21 + 21/98 = 51/14
In mixed form: 39/14
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