Subtract 70/54 from 7/30
1st number: 7/30, 2nd number: 1 16/54
7/30 - 70/54 is -287/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
7/30 = 7 × 9/30 × 9 = 63/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
70/54 = 70 × 5/54 × 5 = 350/270 - Subtract the two like fractions:
63/270 - 350/270 = 63 - 350/270 = -287/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-70/54 7/60-70/54 21/30-70/54 7/90-70/54 35/30-70/54 49/30-70/54