Add 42/45 and 12/50
42/45 + 12/50 is 88/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
42/45 = 42 × 10/45 × 10 = 420/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
12/50 = 12 × 9/50 × 9 = 108/450 - Add the two like fractions:
420/450 + 108/450 = 420 + 108/450 = 528/450 - 528/450 simplified gives 88/75
- So, 42/45 + 12/50 = 88/75
In mixed form: 113/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+12/50 42/45+24/50 42/90+12/50 42/45+36/50 42/45+60/50 42/45+84/50