Subtract 70/9 from 54/30
1st number: 1 24/30, 2nd number: 7 7/9
54/30 - 70/9 is -269/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
54/30 = 54 × 3/30 × 3 = 162/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
70/9 = 70 × 10/9 × 10 = 700/90 - Subtract the two like fractions:
162/90 - 700/90 = 162 - 700/90 = -538/90 - After reducing the fraction, the answer is -269/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/60-70/9 54/30-70/18 54/90-70/9 54/30-70/27 54/30-70/45 54/30-70/63