Subtract 18/14 from 30/8
1st number: 3 6/8, 2nd number: 1 4/14
30/8 - 18/14 is 69/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 14 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
30/8 = 30 × 7/8 × 7 = 210/56 - Likewise, for the 2nd fraction, since 14 × 4 = 56,
18/14 = 18 × 4/14 × 4 = 72/56 - Subtract the two like fractions:
210/56 - 72/56 = 210 - 72/56 = 138/56 - After reducing the fraction, the answer is 69/28
- In mixed form: 213/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8-18/14 30/8-36/14 30/16-18/14 30/8-18/28 90/8-18/14 30/8-54/14 30/24-18/14 30/8-18/42 30/8-90/14 30/40-18/14 30/8-18/70 30/56-18/14 30/8-18/98