Subtract 42/36 from 4/45
1st number: 4/45, 2nd number: 1 6/36
4/45 - 42/36 is -97/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
4/45 = 4 × 4/45 × 4 = 16/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
42/36 = 42 × 5/36 × 5 = 210/180 - Subtract the two like fractions:
16/180 - 210/180 = 16 - 210/180 = -194/180 - After reducing the fraction, the answer is -97/90
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