Subtract 2/70 from 20/64, Solve 20/64

Subtract 2/70 from 20/64

20/64 - 2/70 is 159/560.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 70 is 2240

Next, find the equivalent fraction of both fractional numbers with denominator 2240
For the 1st fraction, since 64 × 35 = 2240,
20/64 = 20 × 35/64 × 35 = 700/2240
Likewise, for the 2nd fraction, since 70 × 32 = 2240,
2/70 = 2 × 32/70 × 32 = 64/2240
Subtract the two like fractions:
700/2240 - 64/2240 = 700 - 64/2240 = 636/2240
After reducing the fraction, the answer is 159/560

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