Add 20/64 and 21/20
1st number: 20/64, 2nd number: 1 1/20
20/64 + 21/20 is 109/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 20 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
20/64 = 20 × 5/64 × 5 = 100/320 - Likewise, for the 2nd fraction, since 20 × 16 = 320,
21/20 = 21 × 16/20 × 16 = 336/320 - Add the two like fractions:
100/320 + 336/320 = 100 + 336/320 = 436/320 - 436/320 simplified gives 109/80
- So, 20/64 + 21/20 = 109/80
In mixed form: 129/80
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