Subtract 21/27 from 70/63
1st number: 1 7/63, 2nd number: 21/27
70/63 - 21/27 is 1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 63 × 3 = 189,
70/63 = 70 × 3/63 × 3 = 210/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
21/27 = 21 × 7/27 × 7 = 147/189 - Subtract the two like fractions:
210/189 - 147/189 = 210 - 147/189 = 63/189 - After reducing the fraction, the answer is 1/3
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