Subtract 30/70 from 2/36
2/36 - 30/70 is -47/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
2/36 = 2 × 35/36 × 35 = 70/1260 - Likewise, for the 2nd fraction, since 70 × 18 = 1260,
30/70 = 30 × 18/70 × 18 = 540/1260 - Subtract the two like fractions:
70/1260 - 540/1260 = 70 - 540/1260 = -470/1260 - After reducing the fraction, the answer is -47/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/36-30/70 2/36-60/70 2/72-30/70 6/36-30/70 2/36-90/70 10/36-30/70 14/36-30/70