Add 90/28 and 4/90
1st number: 3 6/28, 2nd number: 4/90
90/28 + 4/90 is 2053/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
90/28 = 90 × 45/28 × 45 = 4050/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
4/90 = 4 × 14/90 × 14 = 56/1260 - Add the two like fractions:
4050/1260 + 56/1260 = 4050 + 56/1260 = 4106/1260 - 4106/1260 simplified gives 2053/630
- So, 90/28 + 4/90 = 2053/630
In mixed form: 3163/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+8/90 90/56+4/90 90/28+12/90 90/84+4/90 90/28+20/90 90/28+28/90