Add 27/70 and 90/24
1st number: 27/70, 2nd number: 3 18/24
27/70 + 90/24 is 579/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
27/70 = 27 × 12/70 × 12 = 324/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
90/24 = 90 × 35/24 × 35 = 3150/840 - Add the two like fractions:
324/840 + 3150/840 = 324 + 3150/840 = 3474/840 - 3474/840 simplified gives 579/140
- So, 27/70 + 90/24 = 579/140
In mixed form: 419/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70+90/24 27/70+90/48 81/70+90/24 27/70+90/72