Subtract 72/45 from 63/3
1st number: 21 0/3, 2nd number: 1 27/45
63/3 - 72/45 is 97/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
63/3 = 63 × 15/3 × 15 = 945/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
72/45 = 72 × 1/45 × 1 = 72/45 - Subtract the two like fractions:
945/45 - 72/45 = 945 - 72/45 = 873/45 - After reducing the fraction, the answer is 97/5
- In mixed form: 192/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/6-72/45 63/3-72/90 63/9-72/45 63/15-72/45 63/21-72/45