Add 60/70 and 18/54
60/70 + 18/54 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
60/70 = 60 × 27/70 × 27 = 1620/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
18/54 = 18 × 35/54 × 35 = 630/1890 - Add the two like fractions:
1620/1890 + 630/1890 = 1620 + 630/1890 = 2250/1890 - 2250/1890 simplified gives 25/21
- So, 60/70 + 18/54 = 25/21
In mixed form: 14/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70+36/54 60/70+90/54