Add 42/16 and 16/81
1st number: 2 10/16, 2nd number: 16/81
42/16 + 16/81 is 1829/648.
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,
16/81 = 16 × 16/81 × 16 = 256/1296 - Add the two like fractions:
3402/1296 + 256/1296 = 3402 + 256/1296 = 3658/1296 - 3658/1296 simplified gives 1829/648
- So, 42/16 + 16/81 = 1829/648
In mixed form: 2533/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16+16/81 42/16+32/81 42/32+16/81 42/16+48/81 42/48+16/81 42/16+80/81 42/80+16/81