Add 81/70 and 20/98
1st number: 1 11/70, 2nd number: 20/98
81/70 + 20/98 is 667/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
81/70 = 81 × 7/70 × 7 = 567/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
20/98 = 20 × 5/98 × 5 = 100/490 - Add the two like fractions:
567/490 + 100/490 = 567 + 100/490 = 667/490 - So, 81/70 + 20/98 = 667/490
In mixed form: 1177/490
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