Subtract 14/30 from 3/70
3/70 - 14/30 is -89/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
14/30 = 14 × 7/30 × 7 = 98/210 - Subtract the two like fractions:
9/210 - 98/210 = 9 - 98/210 = -89/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/70-14/30 3/70-28/30 3/70-14/60 9/70-14/30 3/70-42/30 3/70-14/90 15/70-14/30 3/70-70/30 21/70-14/30 3/70-98/30