Add 50/90 and 42/12
1st number: 50/90, 2nd number: 3 6/12
50/90 + 42/12 is 73/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
50/90 = 50 × 2/90 × 2 = 100/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
42/12 = 42 × 15/12 × 15 = 630/180 - Add the two like fractions:
100/180 + 630/180 = 100 + 630/180 = 730/180 - 730/180 simplified gives 73/18
- So, 50/90 + 42/12 = 73/18
In mixed form: 41/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90+84/12 50/90+42/24 50/90+42/36 50/90+42/60 50/90+42/84