Subtract 54/64 from 30/80
30/80 - 54/64 is -15/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 80 × 4 = 320,
30/80 = 30 × 4/80 × 4 = 120/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
54/64 = 54 × 5/64 × 5 = 270/320 - Subtract the two like fractions:
120/320 - 270/320 = 120 - 270/320 = -150/320 - After reducing the fraction, the answer is -15/32
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