Add 20/84 and 36/35
1st number: 20/84, 2nd number: 1 1/35
20/84 + 36/35 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 35 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 35 × 12 = 420,
36/35 = 36 × 12/35 × 12 = 432/420 - Add the two like fractions:
100/420 + 432/420 = 100 + 432/420 = 532/420 - 532/420 simplified gives 19/15
- So, 20/84 + 36/35 = 19/15
In mixed form: 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84+36/35 20/84+72/35 20/84+36/70 60/84+36/35