Add 25/90 and 4/42
25/90 + 4/42 is 47/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
25/90 = 25 × 7/90 × 7 = 175/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
4/42 = 4 × 15/42 × 15 = 60/630 - Add the two like fractions:
175/630 + 60/630 = 175 + 60/630 = 235/630 - 235/630 simplified gives 47/126
- So, 25/90 + 4/42 = 47/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90+4/42 25/90+8/42 25/90+4/84 75/90+4/42 25/90+12/42 25/90+20/42 25/90+28/42