Add 2/21 and 90/50
1st number: 2/21, 2nd number: 1 40/50
2/21 + 90/50 is 199/105.
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,
2/21 = 2 × 50/21 × 50 = 100/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
90/50 = 90 × 21/50 × 21 = 1890/1050 - Add the two like fractions:
100/1050 + 1890/1050 = 100 + 1890/1050 = 1990/1050 - 1990/1050 simplified gives 199/105
- So, 2/21 + 90/50 = 199/105
In mixed form: 194/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+90/50 2/42+90/50 6/21+90/50 2/63+90/50 10/21+90/50 14/21+90/50