Subtract 63/84 from 45/24
1st number: 1 21/24, 2nd number: 63/84
45/24 - 63/84 is 9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
45/24 = 45 × 7/24 × 7 = 315/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
63/84 = 63 × 2/84 × 2 = 126/168 - Subtract the two like fractions:
315/168 - 126/168 = 315 - 126/168 = 189/168 - After reducing the fraction, the answer is 9/8
- In mixed form: 11/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/24-63/84 45/48-63/84 45/72-63/84