Subtract 63/20 from 84/25
1st number: 3 9/25, 2nd number: 3 3/20
84/25 - 63/20 is 21/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
84/25 = 84 × 4/25 × 4 = 336/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
63/20 = 63 × 5/20 × 5 = 315/100 - Subtract the two like fractions:
336/100 - 315/100 = 336 - 315/100 = 21/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/50-63/20 84/25-63/40 84/75-63/20 84/25-63/60