Subtract 7/80 from 81/4
1st number: 20 1/4, 2nd number: 7/80
81/4 - 7/80 is 1613/80.
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,
81/4 = 81 × 20/4 × 20 = 1620/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
7/80 = 7 × 1/80 × 1 = 7/80 - Subtract the two like fractions:
1620/80 - 7/80 = 1620 - 7/80 = 1613/80 - In mixed form: 2013/80
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