Add 42/56 and 35/90
42/56 + 35/90 is 41/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
42/56 = 42 × 45/56 × 45 = 1890/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
35/90 = 35 × 28/90 × 28 = 980/2520 - Add the two like fractions:
1890/2520 + 980/2520 = 1890 + 980/2520 = 2870/2520 - 2870/2520 simplified gives 41/36
- So, 42/56 + 35/90 = 41/36
In mixed form: 15/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+35/90 42/56+70/90