Add 12/90 and 30/64
12/90 + 30/64 is 289/480.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 64 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 90 × 32 = 2880,
12/90 = 12 × 32/90 × 32 = 384/2880 - Likewise, for the 2nd fraction, since 64 × 45 = 2880,
30/64 = 30 × 45/64 × 45 = 1350/2880 - Add the two like fractions:
384/2880 + 1350/2880 = 384 + 1350/2880 = 1734/2880 - 1734/2880 simplified gives 289/480
- So, 12/90 + 30/64 = 289/480
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/90+30/64 12/90+60/64 36/90+30/64 12/90+90/64 60/90+30/64 84/90+30/64