Subtract 63/90 from 7/24
7/24 - 63/90 is -49/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
7/24 = 7 × 15/24 × 15 = 105/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
63/90 = 63 × 4/90 × 4 = 252/360 - Subtract the two like fractions:
105/360 - 252/360 = 105 - 252/360 = -147/360 - After reducing the fraction, the answer is -49/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/24-63/90 7/48-63/90 21/24-63/90 7/72-63/90 35/24-63/90 49/24-63/90