Subtract 7/70 from 25/54
25/54 - 7/70 is 49/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
25/54 = 25 × 35/54 × 35 = 875/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
7/70 = 7 × 27/70 × 27 = 189/1890 - Subtract the two like fractions:
875/1890 - 189/1890 = 875 - 189/1890 = 686/1890 - After reducing the fraction, the answer is 49/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/54-7/70 25/54-14/70 75/54-7/70 25/54-21/70 25/54-35/70 25/54-49/70