Add 12/10 and 42/9
1st number: 1 2/10, 2nd number: 4 6/9
12/10 + 42/9 is 88/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
12/10 = 12 × 9/10 × 9 = 108/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
42/9 = 42 × 10/9 × 10 = 420/90 - Add the two like fractions:
108/90 + 420/90 = 108 + 420/90 = 528/90 - 528/90 simplified gives 88/15
- So, 12/10 + 42/9 = 88/15
In mixed form: 513/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/10+42/9 12/10+84/9 12/20+42/9 12/10+42/18 36/10+42/9 12/30+42/9 12/10+42/27 60/10+42/9 12/50+42/9 12/10+42/45 84/10+42/9 12/70+42/9 12/10+42/63