Add 42/90 and 25/14
1st number: 42/90, 2nd number: 1 11/14
42/90 + 25/14 is 473/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 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 14 × 45 = 630,
25/14 = 25 × 45/14 × 45 = 1125/630 - Add the two like fractions:
294/630 + 1125/630 = 294 + 1125/630 = 1419/630 - 1419/630 simplified gives 473/210
- So, 42/90 + 25/14 = 473/210
In mixed form: 253/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+25/14 42/90+50/14 42/90+25/28 42/90+75/14 42/90+25/42 42/90+25/70 42/90+25/98