Subtract 10/7 from 27/45
1st number: 27/45, 2nd number: 1 3/7
27/45 - 10/7 is -29/35.
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,
27/45 = 27 × 7/45 × 7 = 189/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
10/7 = 10 × 45/7 × 45 = 450/315 - Subtract the two like fractions:
189/315 - 450/315 = 189 - 450/315 = -261/315 - After reducing the fraction, the answer is -29/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45-10/7 27/45-20/7 27/90-10/7 27/45-10/14 81/45-10/7 27/45-30/7 27/45-10/21 27/45-50/7 27/45-10/35 27/45-70/7 27/45-10/49