Subtract 45/36 from 4/20
1st number: 4/20, 2nd number: 1 9/36
4/20 - 45/36 is -21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
4/20 = 4 × 9/20 × 9 = 36/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
45/36 = 45 × 5/36 × 5 = 225/180 - Subtract the two like fractions:
36/180 - 225/180 = 36 - 225/180 = -189/180 - After reducing the fraction, the answer is -21/20
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