Subtract 21/90 from 63/20
1st number: 3 3/20, 2nd number: 21/90
63/20 - 21/90 is 35/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
63/20 = 63 × 9/20 × 9 = 567/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
21/90 = 21 × 2/90 × 2 = 42/180 - Subtract the two like fractions:
567/180 - 42/180 = 567 - 42/180 = 525/180 - After reducing the fraction, the answer is 35/12
- In mixed form: 211/12
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