Subtract 42/54 from 2/70
2/70 - 42/54 is -236/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
2/70 = 2 × 27/70 × 27 = 54/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
42/54 = 42 × 35/54 × 35 = 1470/1890 - Subtract the two like fractions:
54/1890 - 1470/1890 = 54 - 1470/1890 = -1416/1890 - After reducing the fraction, the answer is -236/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/70-42/54 2/70-84/54 6/70-42/54 10/70-42/54 14/70-42/54