Add 9/60 and 10/21
9/60 + 10/21 is 263/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
9/60 = 9 × 7/60 × 7 = 63/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
10/21 = 10 × 20/21 × 20 = 200/420 - Add the two like fractions:
63/420 + 200/420 = 63 + 200/420 = 263/420 - So, 9/60 + 10/21 = 263/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/60+10/21 9/60+20/21 9/60+10/42 27/60+10/21 9/60+30/21 9/60+10/63 45/60+10/21 9/60+50/21 63/60+10/21 9/60+70/21