Add 18/64 and 1/90
18/64 + 1/90 is 421/1440.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 90 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 64 × 45 = 2880,
18/64 = 18 × 45/64 × 45 = 810/2880 - Likewise, for the 2nd fraction, since 90 × 32 = 2880,
1/90 = 1 × 32/90 × 32 = 32/2880 - Add the two like fractions:
810/2880 + 32/2880 = 810 + 32/2880 = 842/2880 - 842/2880 simplified gives 421/1440
- So, 18/64 + 1/90 = 421/1440
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