Subtract 18/84 from 63/20
1st number: 3 3/20, 2nd number: 18/84
63/20 - 18/84 is 411/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
63/20 = 63 × 21/20 × 21 = 1323/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
18/84 = 18 × 5/84 × 5 = 90/420 - Subtract the two like fractions:
1323/420 - 90/420 = 1323 - 90/420 = 1233/420 - After reducing the fraction, the answer is 411/140
- In mixed form: 2131/140
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