Subtract 72/56 from 18/90
1st number: 18/90, 2nd number: 1 16/56
18/90 - 72/56 is -38/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
18/90 = 18 × 28/90 × 28 = 504/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
72/56 = 72 × 45/56 × 45 = 3240/2520 - Subtract the two like fractions:
504/2520 - 3240/2520 = 504 - 3240/2520 = -2736/2520 - After reducing the fraction, the answer is -38/35
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