Add 9/10 and 42/45
9/10 + 42/45 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
9/10 = 9 × 9/10 × 9 = 81/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
42/45 = 42 × 2/45 × 2 = 84/90 - Add the two like fractions:
81/90 + 84/90 = 81 + 84/90 = 165/90 - 165/90 simplified gives 11/6
- So, 9/10 + 42/45 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10+42/45 9/10+84/45 9/20+42/45 9/10+42/90 27/10+42/45 9/30+42/45 45/10+42/45 9/50+42/45 63/10+42/45 9/70+42/45