Subtract 90/25 from 63/72
1st number: 63/72, 2nd number: 3 15/25
63/72 - 90/25 is -109/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 25 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
63/72 = 63 × 25/72 × 25 = 1575/1800 - Likewise, for the 2nd fraction, since 25 × 72 = 1800,
90/25 = 90 × 72/25 × 72 = 6480/1800 - Subtract the two like fractions:
1575/1800 - 6480/1800 = 1575 - 6480/1800 = -4905/1800 - After reducing the fraction, the answer is -109/40
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