Add 8/84 and 30/10
1st number: 8/84, 2nd number: 3 0/10
8/84 + 30/10 is 65/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
30/10 = 30 × 42/10 × 42 = 1260/420 - Add the two like fractions:
40/420 + 1260/420 = 40 + 1260/420 = 1300/420 - 1300/420 simplified gives 65/21
- So, 8/84 + 30/10 = 65/21
In mixed form: 32/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/84+30/10 8/84+60/10 8/84+30/20 24/84+30/10 8/84+90/10 40/84+30/10 8/84+30/50 56/84+30/10 8/84+30/70