Add 9/20 and 10/84
9/20 + 10/84 is 239/420.
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,
9/20 = 9 × 21/20 × 21 = 189/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
10/84 = 10 × 5/84 × 5 = 50/420 - Add the two like fractions:
189/420 + 50/420 = 189 + 50/420 = 239/420 - So, 9/20 + 10/84 = 239/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20+10/84 9/20+20/84 9/40+10/84 27/20+10/84 9/20+30/84 9/60+10/84 45/20+10/84 9/20+50/84 63/20+10/84 9/20+70/84