Subtract 4/70 from 27/30
27/30 - 4/70 is 59/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
27/30 = 27 × 7/30 × 7 = 189/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
4/70 = 4 × 3/70 × 3 = 12/210 - Subtract the two like fractions:
189/210 - 12/210 = 189 - 12/210 = 177/210 - After reducing the fraction, the answer is 59/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30-4/70 27/30-8/70 27/60-4/70 81/30-4/70 27/30-12/70 27/90-4/70 27/30-20/70 27/30-28/70