Subtract 90/50 from 7/90
1st number: 7/90, 2nd number: 1 40/50
7/90 - 90/50 is -31/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
7/90 = 7 × 5/90 × 5 = 35/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
90/50 = 90 × 9/50 × 9 = 810/450 - Subtract the two like fractions:
35/450 - 810/450 = 35 - 810/450 = -775/450 - After reducing the fraction, the answer is -31/18
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