Subtract 72/45 from 20/56
1st number: 20/56, 2nd number: 1 27/45
20/56 - 72/45 is -87/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
20/56 = 20 × 45/56 × 45 = 900/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
72/45 = 72 × 56/45 × 56 = 4032/2520 - Subtract the two like fractions:
900/2520 - 4032/2520 = 900 - 4032/2520 = -3132/2520 - After reducing the fraction, the answer is -87/70
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