Subtract 18/70 from 84/4
1st number: 21 0/4, 2nd number: 18/70
84/4 - 18/70 is 726/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
84/4 = 84 × 35/4 × 35 = 2940/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
18/70 = 18 × 2/70 × 2 = 36/140 - Subtract the two like fractions:
2940/140 - 36/140 = 2940 - 36/140 = 2904/140 - After reducing the fraction, the answer is 726/35
- In mixed form: 2026/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4-36/70 84/8-18/70 84/4-54/70 84/12-18/70 84/4-90/70 84/20-18/70 84/28-18/70