Answers

Subtract 15/9 from 60/70

1^st number: 60/70, 2^nd number: 1 6/9

60/70 - 15/9 is -17/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 9 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   60/70 = 60 × 9/70 × 9 = 540/630
3. Likewise, for the 2nd fraction, since 9 × 70 = 630,
   15/9 = 15 × 70/9 × 70 = 1050/630
4. Subtract the two like fractions:
   540/630 - 1050/630 = 540 - 1050/630 = -510/630
5. After reducing the fraction, the answer is -17/21

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