Subtract 18/36 from 90/72
1st number: 1 18/72, 2nd number: 18/36
90/72 - 18/36 is 3/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
18/36 = 18 × 2/36 × 2 = 36/72 - Subtract the two like fractions:
90/72 - 36/72 = 90 - 36/72 = 54/72 - After reducing the fraction, the answer is 3/4
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Related: 90/72-18/72 90/72-54/36 90/72-90/36