Subtract 72/14 from 9/30
1st number: 9/30, 2nd number: 5 2/14
9/30 - 72/14 is -339/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
9/30 = 9 × 7/30 × 7 = 63/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
72/14 = 72 × 15/14 × 15 = 1080/210 - Subtract the two like fractions:
63/210 - 1080/210 = 63 - 1080/210 = -1017/210 - After reducing the fraction, the answer is -339/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30-72/14 9/60-72/14 9/30-72/28 27/30-72/14 9/90-72/14 9/30-72/42 45/30-72/14 9/30-72/70 63/30-72/14 9/30-72/98