Subtract 30/40 from 7/3
1st number: 2 1/3, 2nd number: 30/40
7/3 - 30/40 is 19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
7/3 = 7 × 40/3 × 40 = 280/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Subtract the two like fractions:
280/120 - 90/120 = 280 - 90/120 = 190/120 - After reducing the fraction, the answer is 19/12
- In mixed form: 17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/3-30/40 7/3-60/40 7/6-30/40 7/3-30/80 21/3-30/40 7/3-90/40 7/9-30/40 35/3-30/40 7/15-30/40 49/3-30/40 7/21-30/40