Add 54/45 and 12/70
1st number: 1 9/45, 2nd number: 12/70
54/45 + 12/70 is 48/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
54/45 = 54 × 14/45 × 14 = 756/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Add the two like fractions:
756/630 + 108/630 = 756 + 108/630 = 864/630 - 864/630 simplified gives 48/35
- So, 54/45 + 12/70 = 48/35
In mixed form: 113/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45+24/70 54/90+12/70 54/45+36/70 54/45+60/70 54/45+84/70