Add 20/70 and 75/54
1st number: 20/70, 2nd number: 1 21/54
20/70 + 75/54 is 211/126.
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,
20/70 = 20 × 27/70 × 27 = 540/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
75/54 = 75 × 35/54 × 35 = 2625/1890 - Add the two like fractions:
540/1890 + 2625/1890 = 540 + 2625/1890 = 3165/1890 - 3165/1890 simplified gives 211/126
- So, 20/70 + 75/54 = 211/126
In mixed form: 185/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/70+75/54 60/70+75/54