Subtract 3/80 from 20/12
1st number: 1 8/12, 2nd number: 3/80
20/12 - 3/80 is 391/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
20/12 = 20 × 20/12 × 20 = 400/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
3/80 = 3 × 3/80 × 3 = 9/240 - Subtract the two like fractions:
400/240 - 9/240 = 400 - 9/240 = 391/240 - In mixed form: 1151/240
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