Subtract 40/90 from 5/16
5/16 - 40/90 is -19/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
5/16 = 5 × 45/16 × 45 = 225/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
40/90 = 40 × 8/90 × 8 = 320/720 - Subtract the two like fractions:
225/720 - 320/720 = 225 - 320/720 = -95/720 - After reducing the fraction, the answer is -19/144
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