Add 42/90 and 6/70
42/90 + 6/70 is 58/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
6/70 = 6 × 9/70 × 9 = 54/630 - Add the two like fractions:
294/630 + 54/630 = 294 + 54/630 = 348/630 - 348/630 simplified gives 58/105
- So, 42/90 + 6/70 = 58/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+6/70 42/90+12/70 42/90+18/70 42/90+30/70 42/90+42/70