Subtract 21/70 from 84/48
1st number: 1 36/48, 2nd number: 21/70
84/48 - 21/70 is 29/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 48 × 35 = 1680,
84/48 = 84 × 35/48 × 35 = 2940/1680 - Likewise, for the 2nd fraction, since 70 × 24 = 1680,
21/70 = 21 × 24/70 × 24 = 504/1680 - Subtract the two like fractions:
2940/1680 - 504/1680 = 2940 - 504/1680 = 2436/1680 - After reducing the fraction, the answer is 29/20
- In mixed form: 19/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/48-42/70 84/96-21/70 84/48-63/70