Add 5/10 and 20/84
5/10 + 20/84 is 31/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
5/10 = 5 × 42/10 × 42 = 210/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Add the two like fractions:
210/420 + 100/420 = 210 + 100/420 = 310/420 - 310/420 simplified gives 31/42
- So, 5/10 + 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: 5/10+40/84 5/20+20/84 15/10+20/84 5/10+60/84 5/30+20/84 25/10+20/84 5/50+20/84 35/10+20/84 5/70+20/84