Add 96/21 and 56/90
1st number: 4 12/21, 2nd number: 56/90
96/21 + 56/90 is 1636/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 21 × 30 = 630,
96/21 = 96 × 30/21 × 30 = 2880/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
56/90 = 56 × 7/90 × 7 = 392/630 - Add the two like fractions:
2880/630 + 392/630 = 2880 + 392/630 = 3272/630 - 3272/630 simplified gives 1636/315
- So, 96/21 + 56/90 = 1636/315
In mixed form: 561/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/42+56/90 96/63+56/90