Subtract 3/7 from 84/45
1st number: 1 39/45, 2nd number: 3/7
84/45 - 3/7 is 151/105.
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,
84/45 = 84 × 7/45 × 7 = 588/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
3/7 = 3 × 45/7 × 45 = 135/315 - Subtract the two like fractions:
588/315 - 135/315 = 588 - 135/315 = 453/315 - After reducing the fraction, the answer is 151/105
- In mixed form: 146/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45-6/7 84/90-3/7 84/45-3/14 84/45-9/7 84/45-3/21 84/45-15/7 84/45-3/35 84/45-21/7 84/45-3/49