Add 72/35 and 20/8
1st number: 2 2/35, 2nd number: 2 4/8
72/35 + 20/8 is 319/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
72/35 = 72 × 8/35 × 8 = 576/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
20/8 = 20 × 35/8 × 35 = 700/280 - Add the two like fractions:
576/280 + 700/280 = 576 + 700/280 = 1276/280 - 1276/280 simplified gives 319/70
- So, 72/35 + 20/8 = 319/70
In mixed form: 439/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/35+40/8 72/70+20/8 72/35+20/16 72/35+60/8 72/35+20/24 72/35+20/40 72/35+20/56