Add 20/90 and 84/64
1st number: 20/90, 2nd number: 1 20/64
20/90 + 84/64 is 221/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 64 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 90 × 32 = 2880,
20/90 = 20 × 32/90 × 32 = 640/2880 - Likewise, for the 2nd fraction, since 64 × 45 = 2880,
84/64 = 84 × 45/64 × 45 = 3780/2880 - Add the two like fractions:
640/2880 + 3780/2880 = 640 + 3780/2880 = 4420/2880 - 4420/2880 simplified gives 221/144
- So, 20/90 + 84/64 = 221/144
In mixed form: 177/144
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