Subtract 54/8 from 70/30
1st number: 2 10/30, 2nd number: 6 6/8
70/30 - 54/8 is -53/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
70/30 = 70 × 4/30 × 4 = 280/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
54/8 = 54 × 15/8 × 15 = 810/120 - Subtract the two like fractions:
280/120 - 810/120 = 280 - 810/120 = -530/120 - After reducing the fraction, the answer is -53/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60-54/8 70/30-54/16 70/90-54/8 70/30-54/24 70/30-54/40 70/30-54/56