Subtract 60/45 from 4/72
1st number: 4/72, 2nd number: 1 15/45
4/72 - 60/45 is -23/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
60/45 = 60 × 8/45 × 8 = 480/360 - Subtract the two like fractions:
20/360 - 480/360 = 20 - 480/360 = -460/360 - After reducing the fraction, the answer is -23/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/72-60/45 4/72-60/90 12/72-60/45 20/72-60/45 28/72-60/45