Add 1/2 and 20/84
1/2 + 20/84 is 31/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 2 × 42 = 84,
1/2 = 1 × 42/2 × 42 = 42/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Add the two like fractions:
42/84 + 20/84 = 42 + 20/84 = 62/84 - 62/84 simplified gives 31/42
- So, 1/2 + 20/84 = 31/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 1/2+40/84 1/4+20/84 3/2+20/84 1/2+60/84 1/6+20/84 5/2+20/84 1/10+20/84 7/2+20/84 1/14+20/84