Subtract 7/30 from 6/72
6/72 - 7/30 is -3/20.
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,
7/30 = 7 × 12/30 × 12 = 84/360 - Subtract the two like fractions:
30/360 - 84/360 = 30 - 84/360 = -54/360 - After reducing the fraction, the answer is -3/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/72-7/30 6/72-14/30 6/72-7/60 18/72-7/30 6/72-21/30 6/72-7/90 30/72-7/30 6/72-35/30 42/72-7/30 6/72-49/30