Add 5/90 and 75/42
1st number: 5/90, 2nd number: 1 33/42
5/90 + 75/42 is 116/63.
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,
5/90 = 5 × 7/90 × 7 = 35/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
75/42 = 75 × 15/42 × 15 = 1125/630 - Add the two like fractions:
35/630 + 1125/630 = 35 + 1125/630 = 1160/630 - 1160/630 simplified gives 116/63
- So, 5/90 + 75/42 = 116/63
In mixed form: 153/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90+75/42 5/90+75/84 15/90+75/42 25/90+75/42 35/90+75/42