Add 1/84 and 40/8
1st number: 1/84, 2nd number: 5 0/8
1/84 + 40/8 is 421/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
1/84 = 1 × 2/84 × 2 = 2/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
40/8 = 40 × 21/8 × 21 = 840/168 - Add the two like fractions:
2/168 + 840/168 = 2 + 840/168 = 842/168 - 842/168 simplified gives 421/84
- So, 1/84 + 40/8 = 421/84
In mixed form: 51/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/84+40/8 1/84+80/8 1/84+40/16 3/84+40/8 1/84+40/24 5/84+40/8 7/84+40/8 1/84+40/56