Subtract 16/45 from 3/18
3/18 - 16/45 is -17/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
16/45 = 16 × 2/45 × 2 = 32/90 - Subtract the two like fractions:
15/90 - 32/90 = 15 - 32/90 = -17/90
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