Subtract 36/18 from 7/8
1st number: 7/8, 2nd number: 2 0/18
7/8 - 36/18 is -9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
7/8 = 7 × 9/8 × 9 = 63/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
36/18 = 36 × 4/18 × 4 = 144/72 - Subtract the two like fractions:
63/72 - 144/72 = 63 - 144/72 = -81/72 - After reducing the fraction, the answer is -9/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8-36/18 7/8-72/18 7/16-36/18 21/8-36/18 7/24-36/18 7/8-36/54 35/8-36/18 7/40-36/18 7/8-36/90 49/8-36/18 7/56-36/18