Subtract 72/45 from 28/6
1st number: 4 4/6, 2nd number: 1 27/45
28/6 - 72/45 is 46/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
28/6 = 28 × 15/6 × 15 = 420/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
72/45 = 72 × 2/45 × 2 = 144/90 - Subtract the two like fractions:
420/90 - 144/90 = 420 - 144/90 = 276/90 - After reducing the fraction, the answer is 46/15
- In mixed form: 31/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/6-72/45 28/12-72/45 28/6-72/90 84/6-72/45 28/18-72/45 28/30-72/45 28/42-72/45