Subtract 21/4 from 1/70
1st number: 1/70, 2nd number: 5 1/4
1/70 - 21/4 is -733/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
1/70 = 1 × 2/70 × 2 = 2/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
21/4 = 21 × 35/4 × 35 = 735/140 - Subtract the two like fractions:
2/140 - 735/140 = 2 - 735/140 = -733/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70-21/4 1/70-42/4 1/70-21/8 3/70-21/4 1/70-63/4 1/70-21/12 5/70-21/4 1/70-21/20 7/70-21/4 1/70-21/28