Subtract 3/72 from 63/20
1st number: 3 3/20, 2nd number: 3/72
63/20 - 3/72 is 373/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
63/20 = 63 × 18/20 × 18 = 1134/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
3/72 = 3 × 5/72 × 5 = 15/360 - Subtract the two like fractions:
1134/360 - 15/360 = 1134 - 15/360 = 1119/360 - After reducing the fraction, the answer is 373/120
- In mixed form: 313/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/20-6/72 63/40-3/72 63/20-9/72 63/60-3/72 63/20-15/72 63/20-21/72