Add 64/70 and 90/56
1st number: 64/70, 2nd number: 1 34/56
64/70 + 90/56 is 353/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
64/70 = 64 × 4/70 × 4 = 256/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
90/56 = 90 × 5/56 × 5 = 450/280 - Add the two like fractions:
256/280 + 450/280 = 256 + 450/280 = 706/280 - 706/280 simplified gives 353/140
- So, 64/70 + 90/56 = 353/140
In mixed form: 273/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: