Add 42/16 and 5/81
1st number: 2 10/16, 2nd number: 5/81
42/16 + 5/81 is 1741/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
42/16 = 42 × 81/16 × 81 = 3402/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
5/81 = 5 × 16/81 × 16 = 80/1296 - Add the two like fractions:
3402/1296 + 80/1296 = 3402 + 80/1296 = 3482/1296 - 3482/1296 simplified gives 1741/648
- So, 42/16 + 5/81 = 1741/648
In mixed form: 2445/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16+5/81 42/16+10/81 42/32+5/81 42/16+15/81 42/48+5/81 42/16+25/81 42/80+5/81 42/16+35/81