Add 70/98 and 20/21
70/98 + 20/21 is 5/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 21 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 98 × 3 = 294,
70/98 = 70 × 3/98 × 3 = 210/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
20/21 = 20 × 14/21 × 14 = 280/294 - Add the two like fractions:
210/294 + 280/294 = 210 + 280/294 = 490/294 - 490/294 simplified gives 5/3
- So, 70/98 + 20/21 = 5/3
In mixed form: 12/3
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