Add 42/75 and 56/90
42/75 + 56/90 is 266/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
42/75 = 42 × 6/75 × 6 = 252/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
56/90 = 56 × 5/90 × 5 = 280/450 - Add the two like fractions:
252/450 + 280/450 = 252 + 280/450 = 532/450 - 532/450 simplified gives 266/225
- So, 42/75 + 56/90 = 266/225
In mixed form: 141/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75+56/90