Add 45/27 and 75/70
1st number: 1 18/27, 2nd number: 1 5/70
45/27 + 75/70 is 115/42.
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,
45/27 = 45 × 70/27 × 70 = 3150/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
75/70 = 75 × 27/70 × 27 = 2025/1890 - Add the two like fractions:
3150/1890 + 2025/1890 = 3150 + 2025/1890 = 5175/1890 - 5175/1890 simplified gives 115/42
- So, 45/27 + 75/70 = 115/42
In mixed form: 231/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27+75/70 45/54+75/70 45/81+75/70