Subtract 20/35 from 6/72
6/72 - 20/35 is -41/84.
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,
6/72 = 6 × 35/72 × 35 = 210/2520 - Likewise, for the 2nd fraction, since 35 × 72 = 2520,
20/35 = 20 × 72/35 × 72 = 1440/2520 - Subtract the two like fractions:
210/2520 - 1440/2520 = 210 - 1440/2520 = -1230/2520 - After reducing the fraction, the answer is -41/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/72-20/35 6/72-40/35 6/72-20/70 18/72-20/35 6/72-60/35 30/72-20/35 42/72-20/35