Add 2/70 and 42/90
2/70 + 42/90 is 52/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
2/70 = 2 × 9/70 × 9 = 18/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Add the two like fractions:
18/630 + 294/630 = 18 + 294/630 = 312/630 - 312/630 simplified gives 52/105
- So, 2/70 + 42/90 = 52/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/70+42/90 2/70+84/90 6/70+42/90 10/70+42/90 14/70+42/90