Subtract 63/45 from 30/7
1st number: 4 2/7, 2nd number: 1 18/45
30/7 - 63/45 is 101/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
30/7 = 30 × 45/7 × 45 = 1350/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
63/45 = 63 × 7/45 × 7 = 441/315 - Subtract the two like fractions:
1350/315 - 441/315 = 1350 - 441/315 = 909/315 - After reducing the fraction, the answer is 101/35
- In mixed form: 231/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7-63/45 30/14-63/45 30/7-63/90 90/7-63/45 30/21-63/45 30/35-63/45 30/49-63/45