Add 80/98 and 21/70
80/98 + 21/70 is 547/490.
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,
80/98 = 80 × 5/98 × 5 = 400/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
21/70 = 21 × 7/70 × 7 = 147/490 - Add the two like fractions:
400/490 + 147/490 = 400 + 147/490 = 547/490 - So, 80/98 + 21/70 = 547/490
In mixed form: 157/490
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