Add 8/20 and 1/84
8/20 + 1/84 is 173/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
8/20 = 8 × 21/20 × 21 = 168/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
1/84 = 1 × 5/84 × 5 = 5/420 - Add the two like fractions:
168/420 + 5/420 = 168 + 5/420 = 173/420 - So, 8/20 + 1/84 = 173/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20+1/84 8/20+2/84 8/40+1/84 24/20+1/84 8/20+3/84 8/60+1/84 40/20+1/84 8/20+5/84 56/20+1/84 8/20+7/84