Add 80/8 and 84/42
1st number: 10 0/8, 2nd number: 2 0/42
80/8 + 84/42 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
80/8 = 80 × 21/8 × 21 = 1680/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
84/42 = 84 × 4/42 × 4 = 336/168 - Add the two like fractions:
1680/168 + 336/168 = 1680 + 336/168 = 2016/168 - 2016/168 simplified gives 12/1
- So, 80/8 + 84/42 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/16+84/42 80/24+84/42 80/40+84/42 80/56+84/42