Subtract 25/80 from 30/7
1st number: 4 2/7, 2nd number: 25/80
30/7 - 25/80 is 445/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
30/7 = 30 × 80/7 × 80 = 2400/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
25/80 = 25 × 7/80 × 7 = 175/560 - Subtract the two like fractions:
2400/560 - 175/560 = 2400 - 175/560 = 2225/560 - After reducing the fraction, the answer is 445/112
- In mixed form: 3109/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7-25/80 30/7-50/80 30/14-25/80 90/7-25/80 30/7-75/80 30/21-25/80 30/35-25/80 30/49-25/80