Subtract 4/10 from 42/64, Solve 42/64

Subtract 4/10 from 42/64

42/64 - 4/10 is 41/160.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 10 is 320

Next, find the equivalent fraction of both fractional numbers with denominator 320
For the 1st fraction, since 64 × 5 = 320,
42/64 = 42 × 5/64 × 5 = 210/320
Likewise, for the 2nd fraction, since 10 × 32 = 320,
4/10 = 4 × 32/10 × 32 = 128/320
Subtract the two like fractions:
210/320 - 128/320 = 210 - 128/320 = 82/320
After reducing the fraction, the answer is 41/160

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