Subtract 16/36 from 4/90
4/90 - 16/36 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
4/90 = 4 × 2/90 × 2 = 8/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
16/36 = 16 × 5/36 × 5 = 80/180 - Subtract the two like fractions:
8/180 - 80/180 = 8 - 80/180 = -72/180 - After reducing the fraction, the answer is -2/5
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