Add 20/84 and 32/5
1st number: 20/84, 2nd number: 6 2/5
20/84 + 32/5 is 697/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
32/5 = 32 × 84/5 × 84 = 2688/420 - Add the two like fractions:
100/420 + 2688/420 = 100 + 2688/420 = 2788/420 - 2788/420 simplified gives 697/105
- So, 20/84 + 32/5 = 697/105
In mixed form: 667/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84+32/5 20/84+64/5 20/84+32/10 60/84+32/5 20/84+96/5 20/84+32/15 20/84+32/25 20/84+32/35