Add 7/9 and 20/63
7/9 + 20/63 is 23/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
7/9 = 7 × 7/9 × 7 = 49/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
20/63 = 20 × 1/63 × 1 = 20/63 - Add the two like fractions:
49/63 + 20/63 = 49 + 20/63 = 69/63 - 69/63 simplified gives 23/21
- So, 7/9 + 20/63 = 23/21
In mixed form: 12/21
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