Add 4/28 and 10/90
4/28 + 10/90 is 16/63.
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,
4/28 = 4 × 45/28 × 45 = 180/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
10/90 = 10 × 14/90 × 14 = 140/1260 - Add the two like fractions:
180/1260 + 140/1260 = 180 + 140/1260 = 320/1260 - 320/1260 simplified gives 16/63
- So, 4/28 + 10/90 = 16/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28+10/90 4/28+20/90 4/56+10/90 12/28+10/90 4/28+30/90 4/84+10/90 20/28+10/90 4/28+50/90 4/28+70/90