Subtract 3/35 from 7/72
7/72 - 3/35 is 29/2520.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 35 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
7/72 = 7 × 35/72 × 35 = 245/2520 - Likewise, for the 2nd fraction, since 35 × 72 = 2520,
3/35 = 3 × 72/35 × 72 = 216/2520 - Subtract the two like fractions:
245/2520 - 216/2520 = 245 - 216/2520 = 29/2520
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/72-3/35 7/72-6/35 7/72-3/70 21/72-3/35 7/72-9/35 35/72-3/35 7/72-15/35 49/72-3/35 7/72-21/35