Subtract 9/5 from 3/72
1st number: 3/72, 2nd number: 1 4/5
3/72 - 9/5 is -211/120.
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,
9/5 = 9 × 72/5 × 72 = 648/360 - Subtract the two like fractions:
15/360 - 648/360 = 15 - 648/360 = -633/360 - After reducing the fraction, the answer is -211/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/72-9/5 3/72-18/5 3/72-9/10 9/72-9/5 3/72-27/5 3/72-9/15 15/72-9/5 3/72-45/5 3/72-9/25 21/72-9/5 3/72-63/5 3/72-9/35