Subtract 9/80 from 20/4
1st number: 5 0/4, 2nd number: 9/80
20/4 - 9/80 is 391/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
20/4 = 20 × 20/4 × 20 = 400/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
9/80 = 9 × 1/80 × 1 = 9/80 - Subtract the two like fractions:
400/80 - 9/80 = 400 - 9/80 = 391/80 - In mixed form: 471/80
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