Subtract 30/36 from 2/8
2/8 - 30/36 is -7/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
2/8 = 2 × 9/8 × 9 = 18/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
30/36 = 30 × 2/36 × 2 = 60/72 - Subtract the two like fractions:
18/72 - 60/72 = 18 - 60/72 = -42/72 - After reducing the fraction, the answer is -7/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8-30/36 2/8-60/36 2/16-30/36 2/8-30/72 6/8-30/36 2/8-90/36 2/24-30/36 10/8-30/36 2/40-30/36 14/8-30/36 2/56-30/36