Add 20/63 and 4/7
20/63 + 4/7 is 8/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
20/63 = 20 × 1/63 × 1 = 20/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
4/7 = 4 × 9/7 × 9 = 36/63 - Add the two like fractions:
20/63 + 36/63 = 20 + 36/63 = 56/63 - 56/63 simplified gives 8/9
- So, 20/63 + 4/7 = 8/9
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