Subtract 15/27 from 9/70
9/70 - 15/27 is -269/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 27 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
9/70 = 9 × 27/70 × 27 = 243/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
15/27 = 15 × 70/27 × 70 = 1050/1890 - Subtract the two like fractions:
243/1890 - 1050/1890 = 243 - 1050/1890 = -807/1890 - After reducing the fraction, the answer is -269/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/70-15/27 9/70-30/27 9/70-15/54 27/70-15/27 9/70-45/27 9/70-15/81 45/70-15/27 9/70-75/27 63/70-15/27