Add 42/27 and 30/70
1st number: 1 15/27, 2nd number: 30/70
42/27 + 30/70 is 125/63.
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,
42/27 = 42 × 70/27 × 70 = 2940/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
30/70 = 30 × 27/70 × 27 = 810/1890 - Add the two like fractions:
2940/1890 + 810/1890 = 2940 + 810/1890 = 3750/1890 - 3750/1890 simplified gives 125/63
- So, 42/27 + 30/70 = 125/63
In mixed form: 162/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/27+30/70 42/27+60/70 42/54+30/70 42/27+90/70 42/81+30/70