Subtract 70/45 from 72/35
1st number: 2 2/35, 2nd number: 1 25/45
72/35 - 70/45 is 158/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
72/35 = 72 × 9/35 × 9 = 648/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
70/45 = 70 × 7/45 × 7 = 490/315 - Subtract the two like fractions:
648/315 - 490/315 = 648 - 490/315 = 158/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70-70/45 72/35-70/90