Subtract 4/30 from 63/72
63/72 - 4/30 is 89/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
63/72 = 63 × 5/72 × 5 = 315/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
4/30 = 4 × 12/30 × 12 = 48/360 - Subtract the two like fractions:
315/360 - 48/360 = 315 - 48/360 = 267/360 - After reducing the fraction, the answer is 89/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/72-8/30 63/72-4/60 63/72-12/30 63/72-4/90 63/72-20/30 63/72-28/30