Answers

Subtract 18/60 from 12/70

12/70 - 18/60 is -9/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   12/70 = 12 × 6/70 × 6 = 72/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   18/60 = 18 × 7/60 × 7 = 126/420
4. Subtract the two like fractions:
   72/420 - 126/420 = 72 - 126/420 = -54/420
5. After reducing the fraction, the answer is -9/70

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