Subtract 45/48 from 70/63
1st number: 1 7/63, 2nd number: 45/48
70/63 - 45/48 is 25/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 48 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 63 × 16 = 1008,
70/63 = 70 × 16/63 × 16 = 1120/1008 - Likewise, for the 2nd fraction, since 48 × 21 = 1008,
45/48 = 45 × 21/48 × 21 = 945/1008 - Subtract the two like fractions:
1120/1008 - 945/1008 = 1120 - 945/1008 = 175/1008 - After reducing the fraction, the answer is 25/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63-90/48 70/63-45/96