Add 84/45 and 42/8
1st number: 1 39/45, 2nd number: 5 2/8
84/45 + 42/8 is 427/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
84/45 = 84 × 8/45 × 8 = 672/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
42/8 = 42 × 45/8 × 45 = 1890/360 - Add the two like fractions:
672/360 + 1890/360 = 672 + 1890/360 = 2562/360 - 2562/360 simplified gives 427/60
- So, 84/45 + 42/8 = 427/60
In mixed form: 77/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+84/8 84/90+42/8 84/45+42/16 84/45+42/24 84/45+42/40 84/45+42/56