Add 8/20 and 75/84
8/20 + 75/84 is 181/140.
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,
75/84 = 75 × 5/84 × 5 = 375/420 - Add the two like fractions:
168/420 + 375/420 = 168 + 375/420 = 543/420 - 543/420 simplified gives 181/140
- So, 8/20 + 75/84 = 181/140
In mixed form: 141/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20+75/84 8/40+75/84 24/20+75/84 8/60+75/84 40/20+75/84 56/20+75/84