Subtract 21/40 from 84/20
1st number: 4 4/20, 2nd number: 21/40
84/20 - 21/40 is 147/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
84/20 = 84 × 2/20 × 2 = 168/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
21/40 = 21 × 1/40 × 1 = 21/40 - Subtract the two like fractions:
168/40 - 21/40 = 168 - 21/40 = 147/40 - In mixed form: 327/40
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