Subtract 84/7 from 5/45
1st number: 5/45, 2nd number: 12 0/7
5/45 - 84/7 is -107/9.
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,
5/45 = 5 × 7/45 × 7 = 35/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
84/7 = 84 × 45/7 × 45 = 3780/315 - Subtract the two like fractions:
35/315 - 3780/315 = 35 - 3780/315 = -3745/315 - After reducing the fraction, the answer is -107/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/45-84/7 5/90-84/7 5/45-84/14 15/45-84/7 5/45-84/21 25/45-84/7 5/45-84/35 35/45-84/7 5/45-84/49