Add 35/84 and 18/20
35/84 + 18/20 is 79/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
35/84 = 35 × 5/84 × 5 = 175/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
18/20 = 18 × 21/20 × 21 = 378/420 - Add the two like fractions:
175/420 + 378/420 = 175 + 378/420 = 553/420 - 553/420 simplified gives 79/60
- So, 35/84 + 18/20 = 79/60
In mixed form: 119/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84+18/20 35/84+36/20 35/84+18/40 35/84+54/20 35/84+18/60 35/84+90/20