Add 72/27 and 84/70
1st number: 2 18/27, 2nd number: 1 14/70
72/27 + 84/70 is 58/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 27 × 70 = 1890,
72/27 = 72 × 70/27 × 70 = 5040/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
84/70 = 84 × 27/70 × 27 = 2268/1890 - Add the two like fractions:
5040/1890 + 2268/1890 = 5040 + 2268/1890 = 7308/1890 - 7308/1890 simplified gives 58/15
- So, 72/27 + 84/70 = 58/15
In mixed form: 313/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/54+84/70 72/81+84/70