Subtract 4/30 from 81/14
1st number: 5 11/14, 2nd number: 4/30
81/14 - 4/30 is 1187/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
81/14 = 81 × 15/14 × 15 = 1215/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
4/30 = 4 × 7/30 × 7 = 28/210 - Subtract the two like fractions:
1215/210 - 28/210 = 1215 - 28/210 = 1187/210 - In mixed form: 5137/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/14-8/30 81/28-4/30 81/14-4/60 81/14-12/30 81/42-4/30 81/14-4/90 81/14-20/30 81/70-4/30 81/14-28/30 81/98-4/30