Subtract 70/30 from 25/54
1st number: 25/54, 2nd number: 2 10/30
25/54 - 70/30 is -101/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
25/54 = 25 × 5/54 × 5 = 125/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
70/30 = 70 × 9/30 × 9 = 630/270 - Subtract the two like fractions:
125/270 - 630/270 = 125 - 630/270 = -505/270 - After reducing the fraction, the answer is -101/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/54-70/30 25/54-70/60 75/54-70/30 25/54-70/90