Add 12/2 and 42/45
1st number: 6 0/2, 2nd number: 42/45
12/2 + 42/45 is 104/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
12/2 = 12 × 45/2 × 45 = 540/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90 - Add the two like fractions:
540/90 + 84/90 = 540 + 84/90 = 624/90 - 624/90 simplified gives 104/15
- So, 12/2 + 42/45 = 104/15
In mixed form: 614/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/2+42/45 12/2+84/45 12/4+42/45 12/2+42/90 36/2+42/45 12/6+42/45 60/2+42/45 12/10+42/45 84/2+42/45 12/14+42/45