Add 15/54 and 75/10
1st number: 15/54, 2nd number: 7 5/10
15/54 + 75/10 is 70/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
15/54 = 15 × 5/54 × 5 = 75/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
75/10 = 75 × 27/10 × 27 = 2025/270 - Add the two like fractions:
75/270 + 2025/270 = 75 + 2025/270 = 2100/270 - 2100/270 simplified gives 70/9
- So, 15/54 + 75/10 = 70/9
In mixed form: 77/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/54+75/10 15/54+75/20 45/54+75/10 15/54+75/30 75/54+75/10 15/54+75/50 15/54+75/70