Subtract 20/4 from 8/10
1st number: 8/10, 2nd number: 5 0/4
8/10 - 20/4 is -21/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
8/10 = 8 × 2/10 × 2 = 16/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
20/4 = 20 × 5/4 × 5 = 100/20 - Subtract the two like fractions:
16/20 - 100/20 = 16 - 100/20 = -84/20 - After reducing the fraction, the answer is -21/5
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