Add 90/98 and 81/21
1st number: 90/98, 2nd number: 3 18/21
90/98 + 81/21 is 234/49.
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,
90/98 = 90 × 3/98 × 3 = 270/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
81/21 = 81 × 14/21 × 14 = 1134/294 - Add the two like fractions:
270/294 + 1134/294 = 270 + 1134/294 = 1404/294 - 1404/294 simplified gives 234/49
- So, 90/98 + 81/21 = 234/49
In mixed form: 438/49
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