Add 5/45 and 42/7
1st number: 5/45, 2nd number: 6 0/7
5/45 + 42/7 is 55/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
5/45 = 5 × 7/45 × 7 = 35/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
42/7 = 42 × 45/7 × 45 = 1890/315 - Add the two like fractions:
35/315 + 1890/315 = 35 + 1890/315 = 1925/315 - 1925/315 simplified gives 55/9
- So, 5/45 + 42/7 = 55/9
In mixed form: 61/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/45+42/7 5/45+84/7 5/90+42/7 5/45+42/14 15/45+42/7 5/45+42/21 25/45+42/7 5/45+42/35 35/45+42/7 5/45+42/49