Subtract 18/16 from 30/7
1st number: 4 2/7, 2nd number: 1 2/16
30/7 - 18/16 is 177/56.
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,
30/7 = 30 × 16/7 × 16 = 480/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
18/16 = 18 × 7/16 × 7 = 126/112 - Subtract the two like fractions:
480/112 - 126/112 = 480 - 126/112 = 354/112 - After reducing the fraction, the answer is 177/56
- In mixed form: 39/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7-18/16 30/7-36/16 30/14-18/16 30/7-18/32 90/7-18/16 30/7-54/16 30/21-18/16 30/7-18/48 30/7-90/16 30/35-18/16 30/7-18/80 30/49-18/16