Add 42/64 and 28/54
42/64 + 28/54 is 1015/864.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 54 is 1728
Next, find the equivalent fraction of both fractional numbers with denominator 1728 - For the 1st fraction, since 64 × 27 = 1728,
42/64 = 42 × 27/64 × 27 = 1134/1728 - Likewise, for the 2nd fraction, since 54 × 32 = 1728,
28/54 = 28 × 32/54 × 32 = 896/1728 - Add the two like fractions:
1134/1728 + 896/1728 = 1134 + 896/1728 = 2030/1728 - 2030/1728 simplified gives 1015/864
- So, 42/64 + 28/54 = 1015/864
In mixed form: 1151/864
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/64+28/54 42/64+56/54 42/64+84/54