Subtract 35/20 from 9/72
1st number: 9/72, 2nd number: 1 15/20
9/72 - 35/20 is -13/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
35/20 = 35 × 18/20 × 18 = 630/360 - Subtract the two like fractions:
45/360 - 630/360 = 45 - 630/360 = -585/360 - After reducing the fraction, the answer is -13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/72-35/20 9/72-70/20 9/72-35/40 27/72-35/20 9/72-35/60 45/72-35/20 63/72-35/20