Add 3/98 and 21/70
3/98 + 21/70 is 81/245.
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,
3/98 = 3 × 5/98 × 5 = 15/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
21/70 = 21 × 7/70 × 7 = 147/490 - Add the two like fractions:
15/490 + 147/490 = 15 + 147/490 = 162/490 - 162/490 simplified gives 81/245
- So, 3/98 + 21/70 = 81/245
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