Add 42/24 and 9/45
1st number: 1 18/24, 2nd number: 9/45
42/24 + 9/45 is 39/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
42/24 = 42 × 15/24 × 15 = 630/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
9/45 = 9 × 8/45 × 8 = 72/360 - Add the two like fractions:
630/360 + 72/360 = 630 + 72/360 = 702/360 - 702/360 simplified gives 39/20
- So, 42/24 + 9/45 = 39/20
In mixed form: 119/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24+9/45 42/24+18/45 42/48+9/45 42/24+9/90 42/24+27/45 42/72+9/45 42/24+63/45