Subtract 84/30 from 9/70
1st number: 9/70, 2nd number: 2 24/30
9/70 - 84/30 is -187/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
9/70 = 9 × 3/70 × 3 = 27/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
84/30 = 84 × 7/30 × 7 = 588/210 - Subtract the two like fractions:
27/210 - 588/210 = 27 - 588/210 = -561/210 - After reducing the fraction, the answer is -187/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/70-84/30 9/70-84/60 27/70-84/30 9/70-84/90 45/70-84/30 63/70-84/30