Subtract 35/20 from 54/72
1st number: 54/72, 2nd number: 1 15/20
54/72 - 35/20 is -1/1.
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,
54/72 = 54 × 5/72 × 5 = 270/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
35/20 = 35 × 18/20 × 18 = 630/360 - Subtract the two like fractions:
270/360 - 630/360 = 270 - 630/360 = -360/360 - After reducing the fraction, the answer is -1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72-70/20 54/72-35/40 54/72-35/60