Add 35/48 and 90/21
1st number: 35/48, 2nd number: 4 6/21
35/48 + 90/21 is 1685/336.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
35/48 = 35 × 7/48 × 7 = 245/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
90/21 = 90 × 16/21 × 16 = 1440/336 - Add the two like fractions:
245/336 + 1440/336 = 245 + 1440/336 = 1685/336 - So, 35/48 + 90/21 = 1685/336
In mixed form: 55/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/48+90/21 35/96+90/21 35/48+90/42 35/48+90/63