Add 63/90 and 1/84
63/90 + 1/84 is 299/420.
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,
63/90 = 63 × 14/90 × 14 = 882/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
1/84 = 1 × 15/84 × 15 = 15/1260 - Add the two like fractions:
882/1260 + 15/1260 = 882 + 15/1260 = 897/1260 - 897/1260 simplified gives 299/420
- So, 63/90 + 1/84 = 299/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/90+2/84 63/90+3/84 63/90+5/84 63/90+7/84