Add 21/98 and 2/70
21/98 + 2/70 is 17/70.
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,
2/70 = 2 × 7/70 × 7 = 14/490 - Add the two like fractions:
105/490 + 14/490 = 105 + 14/490 = 119/490 - 119/490 simplified gives 17/70
- So, 21/98 + 2/70 = 17/70
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