Subtract 18/28 from 7/3
1st number: 2 1/3, 2nd number: 18/28
7/3 - 18/28 is 71/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
7/3 = 7 × 28/3 × 28 = 196/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
18/28 = 18 × 3/28 × 3 = 54/84 - Subtract the two like fractions:
196/84 - 54/84 = 196 - 54/84 = 142/84 - After reducing the fraction, the answer is 71/42
- In mixed form: 129/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/3-18/28 7/3-36/28 7/6-18/28 7/3-18/56 21/3-18/28 7/3-54/28 7/9-18/28 7/3-18/84 35/3-18/28 7/3-90/28 7/15-18/28 49/3-18/28 7/21-18/28