Add 42/7 and 5/45
1st number: 6 0/7, 2nd number: 5/45
42/7 + 5/45 is 55/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
42/7 = 42 × 45/7 × 45 = 1890/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
5/45 = 5 × 7/45 × 7 = 35/315 - Add the two like fractions:
1890/315 + 35/315 = 1890 + 35/315 = 1925/315 - 1925/315 simplified gives 55/9
- So, 42/7 + 5/45 = 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: 84/7+5/45 42/7+10/45 42/14+5/45 42/7+5/90 42/7+15/45 42/21+5/45 42/7+25/45 42/35+5/45 42/7+35/45 42/49+5/45