Subtract 49/30 from 90/72
1st number: 1 18/72, 2nd number: 1 19/30
90/72 - 49/30 is -23/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
49/30 = 49 × 12/30 × 12 = 588/360 - Subtract the two like fractions:
450/360 - 588/360 = 450 - 588/360 = -138/360 - After reducing the fraction, the answer is -23/60
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