Subtract 18/45 from 84/3
1st number: 28 0/3, 2nd number: 18/45
84/3 - 18/45 is 138/5.
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,
84/3 = 84 × 15/3 × 15 = 1260/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
18/45 = 18 × 1/45 × 1 = 18/45 - Subtract the two like fractions:
1260/45 - 18/45 = 1260 - 18/45 = 1242/45 - After reducing the fraction, the answer is 138/5
- In mixed form: 273/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/3-36/45 84/6-18/45 84/3-18/90 84/3-54/45 84/9-18/45 84/3-90/45 84/15-18/45 84/21-18/45