Add 28/70 and 90/32
1st number: 28/70, 2nd number: 2 26/32
28/70 + 90/32 is 257/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 32 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 70 × 16 = 1120,
28/70 = 28 × 16/70 × 16 = 448/1120 - Likewise, for the 2nd fraction, since 32 × 35 = 1120,
90/32 = 90 × 35/32 × 35 = 3150/1120 - Add the two like fractions:
448/1120 + 3150/1120 = 448 + 3150/1120 = 3598/1120 - 3598/1120 simplified gives 257/80
- So, 28/70 + 90/32 = 257/80
In mixed form: 317/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+90/32 28/70+90/64 84/70+90/32 28/70+90/96