Subtract 54/5 from 3/72
1st number: 3/72, 2nd number: 10 4/5
3/72 - 54/5 is -1291/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 5 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
3/72 = 3 × 5/72 × 5 = 15/360 - Likewise, for the 2nd fraction, since 5 × 72 = 360,
54/5 = 54 × 72/5 × 72 = 3888/360 - Subtract the two like fractions:
15/360 - 3888/360 = 15 - 3888/360 = -3873/360 - After reducing the fraction, the answer is -1291/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/72-54/5 3/72-54/10 9/72-54/5 3/72-54/15 15/72-54/5 3/72-54/25 21/72-54/5 3/72-54/35