Add 20/27 and 42/63
20/27 + 42/63 is 38/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 63 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
20/27 = 20 × 7/27 × 7 = 140/189 - Likewise, for the 2nd fraction, since 63 × 3 = 189,
42/63 = 42 × 3/63 × 3 = 126/189 - Add the two like fractions:
140/189 + 126/189 = 140 + 126/189 = 266/189 - 266/189 simplified gives 38/27
- So, 20/27 + 42/63 = 38/27
In mixed form: 111/27
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