Subtract 18/48 from 12/70
12/70 - 18/48 is -57/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 48 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 70 × 24 = 1680,
12/70 = 12 × 24/70 × 24 = 288/1680 - Likewise, for the 2nd fraction, since 48 × 35 = 1680,
18/48 = 18 × 35/48 × 35 = 630/1680 - Subtract the two like fractions:
288/1680 - 630/1680 = 288 - 630/1680 = -342/1680 - After reducing the fraction, the answer is -57/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70-18/48 12/70-36/48 12/70-18/96 36/70-18/48 12/70-54/48 60/70-18/48 12/70-90/48 84/70-18/48