Add 90/28 and 60/64
1st number: 3 6/28, 2nd number: 60/64
90/28 + 60/64 is 465/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 64 is 448
Next, find the equivalent fraction of both fractional numbers with denominator 448 - For the 1st fraction, since 28 × 16 = 448,
90/28 = 90 × 16/28 × 16 = 1440/448 - Likewise, for the 2nd fraction, since 64 × 7 = 448,
60/64 = 60 × 7/64 × 7 = 420/448 - Add the two like fractions:
1440/448 + 420/448 = 1440 + 420/448 = 1860/448 - 1860/448 simplified gives 465/112
- So, 90/28 + 60/64 = 465/112
In mixed form: 417/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+60/64 90/84+60/64