Subtract 84/4 from 54/70
1st number: 54/70, 2nd number: 21 0/4
54/70 - 84/4 is -708/35.
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,
54/70 = 54 × 2/70 × 2 = 108/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
84/4 = 84 × 35/4 × 35 = 2940/140 - Subtract the two like fractions:
108/140 - 2940/140 = 108 - 2940/140 = -2832/140 - After reducing the fraction, the answer is -708/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70-84/8 54/70-84/12 54/70-84/20 54/70-84/28