Subtract 4/72 from 90/25
1st number: 3 15/25, 2nd number: 4/72
90/25 - 4/72 is 319/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 25 × 72 = 1800,
90/25 = 90 × 72/25 × 72 = 6480/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
4/72 = 4 × 25/72 × 25 = 100/1800 - Subtract the two like fractions:
6480/1800 - 100/1800 = 6480 - 100/1800 = 6380/1800 - After reducing the fraction, the answer is 319/90
- In mixed form: 349/90
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