Subtract 7/49 from 27/21
1st number: 1 6/21, 2nd number: 7/49
27/21 - 7/49 is 8/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147
Next, find the equivalent fraction of both fractional numbers with denominator 147 - For the 1st fraction, since 21 × 7 = 147,
27/21 = 27 × 7/21 × 7 = 189/147 - Likewise, for the 2nd fraction, since 49 × 3 = 147,
7/49 = 7 × 3/49 × 3 = 21/147 - Subtract the two like fractions:
189/147 - 21/147 = 189 - 21/147 = 168/147 - After reducing the fraction, the answer is 8/7
- In mixed form: 11/7
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