Subtract 30/28 from 27/10
1st number: 2 7/10, 2nd number: 1 2/28
27/10 - 30/28 is 57/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
27/10 = 27 × 14/10 × 14 = 378/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
30/28 = 30 × 5/28 × 5 = 150/140 - Subtract the two like fractions:
378/140 - 150/140 = 378 - 150/140 = 228/140 - After reducing the fraction, the answer is 57/35
- In mixed form: 122/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10-30/28 27/10-60/28 27/20-30/28 27/10-30/56 81/10-30/28 27/10-90/28 27/30-30/28 27/10-30/84 27/50-30/28 27/70-30/28