Subtract 10/36 from 7/30
7/30 - 10/36 is -2/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
7/30 = 7 × 6/30 × 6 = 42/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
10/36 = 10 × 5/36 × 5 = 50/180 - Subtract the two like fractions:
42/180 - 50/180 = 42 - 50/180 = -8/180 - After reducing the fraction, the answer is -2/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-10/36 7/30-20/36 7/60-10/36 7/30-10/72 21/30-10/36 7/30-30/36 7/90-10/36 35/30-10/36 7/30-50/36 49/30-10/36 7/30-70/36