Add 20/64 and 7/90
20/64 + 7/90 is 281/720.
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,
20/64 = 20 × 45/64 × 45 = 900/2880 - Likewise, for the 2nd fraction, since 90 × 32 = 2880,
7/90 = 7 × 32/90 × 32 = 224/2880 - Add the two like fractions:
900/2880 + 224/2880 = 900 + 224/2880 = 1124/2880 - 1124/2880 simplified gives 281/720
- So, 20/64 + 7/90 = 281/720
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