Subtract 4/9 from 72/5
1st number: 14 2/5, 2nd number: 4/9
72/5 - 4/9 is 628/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
72/5 = 72 × 9/5 × 9 = 648/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
4/9 = 4 × 5/9 × 5 = 20/45 - Subtract the two like fractions:
648/45 - 20/45 = 648 - 20/45 = 628/45 - In mixed form: 1343/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/5-8/9 72/10-4/9 72/5-4/18 72/5-12/9 72/15-4/9 72/5-4/27 72/5-20/9 72/25-4/9 72/5-4/45 72/5-28/9 72/35-4/9 72/5-4/63