Add 35/42 and 16/90
35/42 + 16/90 is 91/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
35/42 = 35 × 15/42 × 15 = 525/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
16/90 = 16 × 7/90 × 7 = 112/630 - Add the two like fractions:
525/630 + 112/630 = 525 + 112/630 = 637/630 - 637/630 simplified gives 91/90
- So, 35/42 + 16/90 = 91/90
In mixed form: 11/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+16/90 35/42+32/90 35/84+16/90 35/42+48/90 35/42+80/90