Subtract 9/70 from 2/54
2/54 - 9/70 is -173/1890.
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,
2/54 = 2 × 35/54 × 35 = 70/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
9/70 = 9 × 27/70 × 27 = 243/1890 - Subtract the two like fractions:
70/1890 - 243/1890 = 70 - 243/1890 = -173/1890
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/54-9/70 2/54-18/70 6/54-9/70 2/54-27/70 10/54-9/70 2/54-45/70 14/54-9/70 2/54-63/70