Add 70/80 and 70/54
1st number: 70/80, 2nd number: 1 16/54
70/80 + 70/54 is 469/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 54 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
70/80 = 70 × 27/80 × 27 = 1890/2160 - Likewise, for the 2nd fraction, since 54 × 40 = 2160,
70/54 = 70 × 40/54 × 40 = 2800/2160 - Add the two like fractions:
1890/2160 + 2800/2160 = 1890 + 2800/2160 = 4690/2160 - 4690/2160 simplified gives 469/216
- So, 70/80 + 70/54 = 469/216
In mixed form: 237/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: