Subtract 4/40 from 84/64
1st number: 1 20/64, 2nd number: 4/40
84/64 - 4/40 is 97/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 40 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
84/64 = 84 × 5/64 × 5 = 420/320 - Likewise, for the 2nd fraction, since 40 × 8 = 320,
4/40 = 4 × 8/40 × 8 = 32/320 - Subtract the two like fractions:
420/320 - 32/320 = 420 - 32/320 = 388/320 - After reducing the fraction, the answer is 97/80
- In mixed form: 117/80
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