Subtract 6/7 from 54/45
1st number: 1 9/45, 2nd number: 6/7
54/45 - 6/7 is 12/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
54/45 = 54 × 7/45 × 7 = 378/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
6/7 = 6 × 45/7 × 45 = 270/315 - Subtract the two like fractions:
378/315 - 270/315 = 378 - 270/315 = 108/315 - After reducing the fraction, the answer is 12/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45-12/7 54/90-6/7 54/45-6/14 54/45-18/7 54/45-6/21 54/45-30/7 54/45-6/35 54/45-42/7 54/45-6/49