Add 20/60 and 36/84
20/60 + 36/84 is 16/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
36/84 = 36 × 5/84 × 5 = 180/420 - Add the two like fractions:
140/420 + 180/420 = 140 + 180/420 = 320/420 - 320/420 simplified gives 16/21
- So, 20/60 + 36/84 = 16/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/60+36/84 20/60+72/84