Add 30/64 and 42/45
30/64 + 42/45 is 673/480.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 45 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 64 × 45 = 2880,
30/64 = 30 × 45/64 × 45 = 1350/2880 - Likewise, for the 2nd fraction, since 45 × 64 = 2880,
42/45 = 42 × 64/45 × 64 = 2688/2880 - Add the two like fractions:
1350/2880 + 2688/2880 = 1350 + 2688/2880 = 4038/2880 - 4038/2880 simplified gives 673/480
- So, 30/64 + 42/45 = 673/480
In mixed form: 1193/480
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/64+42/45 30/64+84/45 30/64+42/90 90/64+42/45