Add 7/54 and 80/70
1st number: 7/54, 2nd number: 1 10/70
7/54 + 80/70 is 481/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
7/54 = 7 × 35/54 × 35 = 245/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
80/70 = 80 × 27/70 × 27 = 2160/1890 - Add the two like fractions:
245/1890 + 2160/1890 = 245 + 2160/1890 = 2405/1890 - 2405/1890 simplified gives 481/378
- So, 7/54 + 80/70 = 481/378
In mixed form: 1103/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/54+80/70 21/54+80/70 35/54+80/70 49/54+80/70