Subtract 27/30 from 7/4
1st number: 1 3/4, 2nd number: 27/30
7/4 - 27/30 is 17/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
7/4 = 7 × 15/4 × 15 = 105/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
27/30 = 27 × 2/30 × 2 = 54/60 - Subtract the two like fractions:
105/60 - 54/60 = 105 - 54/60 = 51/60 - After reducing the fraction, the answer is 17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4-27/30 7/4-54/30 7/8-27/30 7/4-27/60 21/4-27/30 7/4-81/30 7/12-27/30 7/4-27/90 35/4-27/30 7/20-27/30 49/4-27/30 7/28-27/30