Add 15/64 and 40/90
15/64 + 40/90 is 391/576.
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,
15/64 = 15 × 45/64 × 45 = 675/2880 - Likewise, for the 2nd fraction, since 90 × 32 = 2880,
40/90 = 40 × 32/90 × 32 = 1280/2880 - Add the two like fractions:
675/2880 + 1280/2880 = 675 + 1280/2880 = 1955/2880 - 1955/2880 simplified gives 391/576
- So, 15/64 + 40/90 = 391/576
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