Subtract 30/4 from 27/70
1st number: 27/70, 2nd number: 7 2/4
27/70 - 30/4 is -249/35.
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,
27/70 = 27 × 2/70 × 2 = 54/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
30/4 = 30 × 35/4 × 35 = 1050/140 - Subtract the two like fractions:
54/140 - 1050/140 = 54 - 1050/140 = -996/140 - After reducing the fraction, the answer is -249/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70-30/4 27/70-60/4 27/70-30/8 81/70-30/4 27/70-90/4 27/70-30/12 27/70-30/20 27/70-30/28