Add 20/35 and 12/80
20/35 + 12/80 is 101/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 35 × 16 = 560,
20/35 = 20 × 16/35 × 16 = 320/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
12/80 = 12 × 7/80 × 7 = 84/560 - Add the two like fractions:
320/560 + 84/560 = 320 + 84/560 = 404/560 - 404/560 simplified gives 101/140
- So, 20/35 + 12/80 = 101/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/35+12/80 20/35+24/80 20/70+12/80 60/35+12/80 20/35+36/80 20/35+60/80 20/35+84/80