Add 20/54 and 21/63
20/54 + 21/63 is 19/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
20/54 = 20 × 7/54 × 7 = 140/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
21/63 = 21 × 6/63 × 6 = 126/378 - Add the two like fractions:
140/378 + 126/378 = 140 + 126/378 = 266/378 - 266/378 simplified gives 19/27
- So, 20/54 + 21/63 = 19/27
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