Add 84/8 and 42/80
1st number: 10 4/8, 2nd number: 42/80
84/8 + 42/80 is 441/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
84/8 = 84 × 10/8 × 10 = 840/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Add the two like fractions:
840/80 + 42/80 = 840 + 42/80 = 882/80 - 882/80 simplified gives 441/40
- So, 84/8 + 42/80 = 441/40
In mixed form: 111/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8+84/80 84/16+42/80 84/24+42/80 84/40+42/80 84/56+42/80