Add 4/21 and 70/50
1st number: 4/21, 2nd number: 1 20/50
4/21 + 70/50 is 167/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
4/21 = 4 × 50/21 × 50 = 200/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
70/50 = 70 × 21/50 × 21 = 1470/1050 - Add the two like fractions:
200/1050 + 1470/1050 = 200 + 1470/1050 = 1670/1050 - 1670/1050 simplified gives 167/105
- So, 4/21 + 70/50 = 167/105
In mixed form: 162/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21+70/50 4/42+70/50 12/21+70/50 4/63+70/50 20/21+70/50 28/21+70/50