Add 75/90 and 4/7
75/90 + 4/7 is 59/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
75/90 = 75 × 7/90 × 7 = 525/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
4/7 = 4 × 90/7 × 90 = 360/630 - Add the two like fractions:
525/630 + 360/630 = 525 + 360/630 = 885/630 - 885/630 simplified gives 59/42
- So, 75/90 + 4/7 = 59/42
In mixed form: 117/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/90+8/7 75/90+4/14 75/90+12/7 75/90+4/21 75/90+20/7 75/90+4/35 75/90+28/7 75/90+4/49