Add 45/90 and 14/42
45/90 + 14/42 is 5/6.
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,
45/90 = 45 × 7/90 × 7 = 315/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
14/42 = 14 × 15/42 × 15 = 210/630 - Add the two like fractions:
315/630 + 210/630 = 315 + 210/630 = 525/630 - 525/630 simplified gives 5/6
- So, 45/90 + 14/42 = 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 45/90+28/42 45/90+14/84 45/90+70/42 45/90+98/42