Subtract 9/20 from 84/10
1st number: 8 4/10, 2nd number: 9/20
84/10 - 9/20 is 159/20.
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,
84/10 = 84 × 2/10 × 2 = 168/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
9/20 = 9 × 1/20 × 1 = 9/20 - Subtract the two like fractions:
168/20 - 9/20 = 168 - 9/20 = 159/20 - In mixed form: 719/20
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