Subtract 42/45 from 50/7
1st number: 7 1/7, 2nd number: 42/45
50/7 - 42/45 is 652/105.
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,
50/7 = 50 × 45/7 × 45 = 2250/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
42/45 = 42 × 7/45 × 7 = 294/315 - Subtract the two like fractions:
2250/315 - 294/315 = 2250 - 294/315 = 1956/315 - After reducing the fraction, the answer is 652/105
- In mixed form: 622/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7-84/45 50/14-42/45 50/7-42/90 50/21-42/45 50/35-42/45 50/49-42/45