Add 42/64 and 25/36
42/64 + 25/36 is 389/288.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 36 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 64 × 9 = 576,
42/64 = 42 × 9/64 × 9 = 378/576 - Likewise, for the 2nd fraction, since 36 × 16 = 576,
25/36 = 25 × 16/36 × 16 = 400/576 - Add the two like fractions:
378/576 + 400/576 = 378 + 400/576 = 778/576 - 778/576 simplified gives 389/288
- So, 42/64 + 25/36 = 389/288
In mixed form: 1101/288
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/64+25/36 42/64+50/36 42/64+25/72 42/64+75/36