Subtract 42/90 from 6/16
6/16 - 42/90 is -11/120.
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,
6/16 = 6 × 45/16 × 45 = 270/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
42/90 = 42 × 8/90 × 8 = 336/720 - Subtract the two like fractions:
270/720 - 336/720 = 270 - 336/720 = -66/720 - After reducing the fraction, the answer is -11/120
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