Subtract 48/70 from 3/12
3/12 - 48/70 is -61/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
3/12 = 3 × 35/12 × 35 = 105/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
48/70 = 48 × 6/70 × 6 = 288/420 - Subtract the two like fractions:
105/420 - 288/420 = 105 - 288/420 = -183/420 - After reducing the fraction, the answer is -61/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-48/70 3/12-96/70 3/24-48/70 9/12-48/70 3/36-48/70 15/12-48/70 3/60-48/70 21/12-48/70 3/84-48/70