Subtract 72/35 from 25/45
1st number: 25/45, 2nd number: 2 2/35
25/45 - 72/35 is -473/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
25/45 = 25 × 7/45 × 7 = 175/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
72/35 = 72 × 9/35 × 9 = 648/315 - Subtract the two like fractions:
175/315 - 648/315 = 175 - 648/315 = -473/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45-72/35 25/90-72/35 25/45-72/70 75/45-72/35