Subtract 14/40 from 72/45
1st number: 1 27/45, 2nd number: 14/40
72/45 - 14/40 is 5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
72/45 = 72 × 8/45 × 8 = 576/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
14/40 = 14 × 9/40 × 9 = 126/360 - Subtract the two like fractions:
576/360 - 126/360 = 576 - 126/360 = 450/360 - After reducing the fraction, the answer is 5/4
- In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45-28/40 72/90-14/40 72/45-14/80 72/45-42/40 72/45-70/40 72/45-98/40