Add 4/90 and 42/64
4/90 + 42/64 is 1009/1440.
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,
4/90 = 4 × 32/90 × 32 = 128/2880 - Likewise, for the 2nd fraction, since 64 × 45 = 2880,
42/64 = 42 × 45/64 × 45 = 1890/2880 - Add the two like fractions:
128/2880 + 1890/2880 = 128 + 1890/2880 = 2018/2880 - 2018/2880 simplified gives 1009/1440
- So, 4/90 + 42/64 = 1009/1440
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