Subtract 30/16 from 15/7
1st number: 2 1/7, 2nd number: 1 14/16
15/7 - 30/16 is 15/56.
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,
15/7 = 15 × 16/7 × 16 = 240/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
30/16 = 30 × 7/16 × 7 = 210/112 - Subtract the two like fractions:
240/112 - 210/112 = 240 - 210/112 = 30/112 - After reducing the fraction, the answer is 15/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7-30/16 15/7-60/16 15/14-30/16 15/7-30/32 45/7-30/16 15/7-90/16 15/21-30/16 15/7-30/48 75/7-30/16 15/35-30/16 15/7-30/80 15/49-30/16