Add 27/24 and 81/70
1st number: 1 3/24, 2nd number: 1 11/70
27/24 + 81/70 is 639/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
27/24 = 27 × 35/24 × 35 = 945/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
81/70 = 81 × 12/70 × 12 = 972/840 - Add the two like fractions:
945/840 + 972/840 = 945 + 972/840 = 1917/840 - 1917/840 simplified gives 639/280
- So, 27/24 + 81/70 = 639/280
In mixed form: 279/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/24+81/70 27/48+81/70 81/24+81/70 27/72+81/70