Subtract 90/72 from 30/48
1st number: 30/48, 2nd number: 1 18/72
30/48 - 90/72 is -5/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 72 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
30/48 = 30 × 3/48 × 3 = 90/144 - Likewise, for the 2nd fraction, since 72 × 2 = 144,
90/72 = 90 × 2/72 × 2 = 180/144 - Subtract the two like fractions:
90/144 - 180/144 = 90 - 180/144 = -90/144 - After reducing the fraction, the answer is -5/8
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