Subtract 45/12 from 4/80
1st number: 4/80, 2nd number: 3 9/12
4/80 - 45/12 is -37/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
4/80 = 4 × 3/80 × 3 = 12/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
45/12 = 45 × 20/12 × 20 = 900/240 - Subtract the two like fractions:
12/240 - 900/240 = 12 - 900/240 = -888/240 - After reducing the fraction, the answer is -37/10
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