Add 21/98 and 81/70
1st number: 21/98, 2nd number: 1 11/70
21/98 + 81/70 is 48/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
21/98 = 21 × 5/98 × 5 = 105/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
81/70 = 81 × 7/70 × 7 = 567/490 - Add the two like fractions:
105/490 + 567/490 = 105 + 567/490 = 672/490 - 672/490 simplified gives 48/35
- So, 21/98 + 81/70 = 48/35
In mixed form: 113/35
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