Subtract 45/18 from 20/16
1st number: 1 4/16, 2nd number: 2 9/18
20/16 - 45/18 is -5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 18 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
20/16 = 20 × 9/16 × 9 = 180/144 - Likewise, for the 2nd fraction, since 18 × 8 = 144,
45/18 = 45 × 8/18 × 8 = 360/144 - Subtract the two like fractions:
180/144 - 360/144 = 180 - 360/144 = -180/144 - After reducing the fraction, the answer is -5/4
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