Subtract 18/45 from 84/28
1st number: 3 0/28, 2nd number: 18/45
84/28 - 18/45 is 13/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
84/28 = 84 × 45/28 × 45 = 3780/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
18/45 = 18 × 28/45 × 28 = 504/1260 - Subtract the two like fractions:
3780/1260 - 504/1260 = 3780 - 504/1260 = 3276/1260 - After reducing the fraction, the answer is 13/5
- In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-36/45 84/56-18/45 84/28-18/90 84/28-54/45 84/28-90/45