Answers

Subtract 70/63 from 2/45

1^st number: 2/45, 2^nd number: 1 7/63

2/45 - 70/63 is -16/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   2/45 = 2 × 7/45 × 7 = 14/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   70/63 = 70 × 5/63 × 5 = 350/315
4. Subtract the two like fractions:
   14/315 - 350/315 = 14 - 350/315 = -336/315
5. After reducing the fraction, the answer is -16/15

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