Add 40/64 and 42/90
40/64 + 42/90 is 131/120.
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,
40/64 = 40 × 45/64 × 45 = 1800/2880 - Likewise, for the 2nd fraction, since 90 × 32 = 2880,
42/90 = 42 × 32/90 × 32 = 1344/2880 - Add the two like fractions:
1800/2880 + 1344/2880 = 1800 + 1344/2880 = 3144/2880 - 3144/2880 simplified gives 131/120
- So, 40/64 + 42/90 = 131/120
In mixed form: 111/120
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