Subtract 15/27 from 15/21
1521 - 1527 is 1063.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
1521 = 15 × 921 × 9 = 135189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
1527 = 15 × 727 × 7 = 105189 - Subtract the two like fractions:
135189 - 105189 = 135 - 105189 = 30189 - After reducing the fraction, the answer is 1063
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