Subtract 80/30 from 7/2
1st number: 3 1/2, 2nd number: 2 20/30
7/2 - 80/30 is 5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
7/2 = 7 × 15/2 × 15 = 105/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
80/30 = 80 × 1/30 × 1 = 80/30 - Subtract the two like fractions:
105/30 - 80/30 = 105 - 80/30 = 25/30 - After reducing the fraction, the answer is 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2-80/30 7/4-80/30 7/2-80/60 21/2-80/30 7/6-80/30 7/2-80/90 35/2-80/30 7/10-80/30 49/2-80/30 7/14-80/30