Subtract 10/20 from 81/4
1st number: 20 1/4, 2nd number: 10/20
81/4 - 10/20 is 79/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
81/4 = 81 × 5/4 × 5 = 405/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
10/20 = 10 × 1/20 × 1 = 10/20 - Subtract the two like fractions:
405/20 - 10/20 = 405 - 10/20 = 395/20 - After reducing the fraction, the answer is 79/4
- In mixed form: 193/4
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