Subtract 1/30 from 6/72
6/72 - 1/30 is 1/20.
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,
6/72 = 6 × 5/72 × 5 = 30/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
1/30 = 1 × 12/30 × 12 = 12/360 - Subtract the two like fractions:
30/360 - 12/360 = 30 - 12/360 = 18/360 - After reducing the fraction, the answer is 1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/72-1/30 6/72-2/30 6/72-1/60 18/72-1/30 6/72-3/30 6/72-1/90 30/72-1/30 6/72-5/30 42/72-1/30 6/72-7/30