Add 8/21 and 30/50
8/21 + 30/50 is 103/105.
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,
8/21 = 8 × 50/21 × 50 = 400/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
30/50 = 30 × 21/50 × 21 = 630/1050 - Add the two like fractions:
400/1050 + 630/1050 = 400 + 630/1050 = 1030/1050 - 1030/1050 simplified gives 103/105
- So, 8/21 + 30/50 = 103/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/21+30/50 8/21+60/50 8/42+30/50 24/21+30/50 8/21+90/50 8/63+30/50 40/21+30/50 56/21+30/50