Add 84/45 and 6/42
1st number: 1 39/45, 2nd number: 6/42
84/45 + 6/42 is 211/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
84/45 = 84 × 14/45 × 14 = 1176/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
6/42 = 6 × 15/42 × 15 = 90/630 - Add the two like fractions:
1176/630 + 90/630 = 1176 + 90/630 = 1266/630 - 1266/630 simplified gives 211/105
- So, 84/45 + 6/42 = 211/105
In mixed form: 21/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+12/42 84/90+6/42 84/45+6/84 84/45+18/42 84/45+30/42