Add 3/10 and 20/21, Solve 3/10 + 20/21 as a fraction

Add 3/10 and 20/21

3/10 + 20/21 is 263/210.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
3/10 = 3 × 21/10 × 21 = 63/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
20/21 = 20 × 10/21 × 10 = 200/210
Add the two like fractions:
63/210 + 200/210 = 63 + 200/210 = 263/210
So, 3/10 + 20/21 = 263/210
In mixed form: 153/210

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