Subtract 21/20 from 50/10
1st number: 5 0/10, 2nd number: 1 1/20
50/10 - 21/20 is 79/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
50/10 = 50 × 2/10 × 2 = 100/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
21/20 = 21 × 1/20 × 1 = 21/20 - Subtract the two like fractions:
100/20 - 21/20 = 100 - 21/20 = 79/20 - In mixed form: 319/20
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