Subtract 5/30 from 12/7
1st number: 1 5/7, 2nd number: 5/30
12/7 - 5/30 is 65/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
12/7 = 12 × 30/7 × 30 = 360/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
5/30 = 5 × 7/30 × 7 = 35/210 - Subtract the two like fractions:
360/210 - 35/210 = 360 - 35/210 = 325/210 - After reducing the fraction, the answer is 65/42
- In mixed form: 123/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7-5/30 12/7-10/30 12/14-5/30 12/7-5/60 36/7-5/30 12/7-15/30 12/21-5/30 12/7-5/90 60/7-5/30 12/7-25/30 12/35-5/30 84/7-5/30 12/7-35/30 12/49-5/30