Subtract 80/10 from 21/4
1st number: 5 1/4, 2nd number: 8 0/10
21/4 - 80/10 is -11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
21/4 = 21 × 5/4 × 5 = 105/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
80/10 = 80 × 2/10 × 2 = 160/20 - Subtract the two like fractions:
105/20 - 160/20 = 105 - 160/20 = -55/20 - After reducing the fraction, the answer is -11/4
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