Add 1/90 and 4/84
1/90 + 4/84 is 37/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
1/90 = 1 × 14/90 × 14 = 14/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
4/84 = 4 × 15/84 × 15 = 60/1260 - Add the two like fractions:
14/1260 + 60/1260 = 14 + 60/1260 = 74/1260 - 74/1260 simplified gives 37/630
- So, 1/90 + 4/84 = 37/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/90+4/84 1/90+8/84 3/90+4/84 1/90+12/84 5/90+4/84 1/90+20/84 7/90+4/84 1/90+28/84