Add 20/42 and 45/64
20/42 + 45/64 is 1585/1344.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 42 × 32 = 1344,
20/42 = 20 × 32/42 × 32 = 640/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
45/64 = 45 × 21/64 × 21 = 945/1344 - Add the two like fractions:
640/1344 + 945/1344 = 640 + 945/1344 = 1585/1344 - So, 20/42 + 45/64 = 1585/1344
In mixed form: 1241/1344
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