Subtract 4/30 from 10/72
10/72 - 4/30 is 1/180.
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,
10/72 = 10 × 5/72 × 5 = 50/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
4/30 = 4 × 12/30 × 12 = 48/360 - Subtract the two like fractions:
50/360 - 48/360 = 50 - 48/360 = 2/360 - After reducing the fraction, the answer is 1/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/72-4/30 10/72-8/30 10/72-4/60 30/72-4/30 10/72-12/30 10/72-4/90 50/72-4/30 10/72-20/30 70/72-4/30 10/72-28/30