Subtract 12/16 from 30/7
1st number: 4 2/7, 2nd number: 12/16
30/7 - 12/16 is 99/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 7 × 16 = 112,
30/7 = 30 × 16/7 × 16 = 480/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
12/16 = 12 × 7/16 × 7 = 84/112 - Subtract the two like fractions:
480/112 - 84/112 = 480 - 84/112 = 396/112 - After reducing the fraction, the answer is 99/28
- In mixed form: 315/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7-12/16 30/7-24/16 30/14-12/16 30/7-12/32 90/7-12/16 30/7-36/16 30/21-12/16 30/7-12/48 30/7-60/16 30/35-12/16 30/7-12/80 30/7-84/16 30/49-12/16