Subtract 18/64 from 3/70
3/70 - 18/64 is -267/1120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 64 is 2240
Next, find the equivalent fraction of both fractional numbers with denominator 2240 - For the 1st fraction, since 70 × 32 = 2240,
3/70 = 3 × 32/70 × 32 = 96/2240 - Likewise, for the 2nd fraction, since 64 × 35 = 2240,
18/64 = 18 × 35/64 × 35 = 630/2240 - Subtract the two like fractions:
96/2240 - 630/2240 = 96 - 630/2240 = -534/2240 - After reducing the fraction, the answer is -267/1120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/70-18/64 3/70-36/64 9/70-18/64 3/70-54/64 15/70-18/64 3/70-90/64 21/70-18/64