Subtract 30/54 from 6/70
6/70 - 30/54 is -148/315.
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,
6/70 = 6 × 27/70 × 27 = 162/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
30/54 = 30 × 35/54 × 35 = 1050/1890 - Subtract the two like fractions:
162/1890 - 1050/1890 = 162 - 1050/1890 = -888/1890 - After reducing the fraction, the answer is -148/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/70-30/54 6/70-60/54 18/70-30/54 6/70-90/54 30/70-30/54 42/70-30/54