Add 20/16 and 80/70
1st number: 1 4/16, 2nd number: 1 10/70
20/16 + 80/70 is 67/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 16 × 35 = 560,
20/16 = 20 × 35/16 × 35 = 700/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
80/70 = 80 × 8/70 × 8 = 640/560 - Add the two like fractions:
700/560 + 640/560 = 700 + 640/560 = 1340/560 - 1340/560 simplified gives 67/28
- So, 20/16 + 80/70 = 67/28
In mixed form: 211/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/16+80/70 20/32+80/70 60/16+80/70 20/48+80/70 20/80+80/70