Add 21/63 and 70/98
21/63 + 70/98 is 22/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 98 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 63 × 14 = 882,
21/63 = 21 × 14/63 × 14 = 294/882 - Likewise, for the 2nd fraction, since 98 × 9 = 882,
70/98 = 70 × 9/98 × 9 = 630/882 - Add the two like fractions:
294/882 + 630/882 = 294 + 630/882 = 924/882 - 924/882 simplified gives 22/21
- So, 21/63 + 70/98 = 22/21
In mixed form: 11/21
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