Add 20/21 and 45/32, Solve 20/21 + 1 13/32 as a fraction

Add 20/21 and 45/32

1^st number: 20/21, 2^nd number: 1 13/32

20/21 + 45/32 is 1585/672.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 21 × 32 = 672,
20/21 = 20 × 32/21 × 32 = 640/672
Likewise, for the 2nd fraction, since 32 × 21 = 672,
45/32 = 45 × 21/32 × 21 = 945/672
Add the two like fractions:
640/672 + 945/672 = 640 + 945/672 = 1585/672
So, 20/21 + 45/32 = 1585/672
In mixed form: 2241/672

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