Add 42/16 and 84/45
1st number: 2 10/16, 2nd number: 1 39/45
42/16 + 84/45 is 539/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
42/16 = 42 × 45/16 × 45 = 1890/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
84/45 = 84 × 16/45 × 16 = 1344/720 - Add the two like fractions:
1890/720 + 1344/720 = 1890 + 1344/720 = 3234/720 - 3234/720 simplified gives 539/120
- So, 42/16 + 84/45 = 539/120
In mixed form: 459/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16+84/45 42/32+84/45 42/16+84/90 42/48+84/45 42/80+84/45