Answers

Subtract 18/60 from 70/63

1^st number: 1 7/63, 2^nd number: 18/60

70/63 - 18/60 is 73/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 60 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   70/63 = 70 × 20/63 × 20 = 1400/1260
3. Likewise, for the 2nd fraction, since 60 × 21 = 1260,
   18/60 = 18 × 21/60 × 21 = 378/1260
4. Subtract the two like fractions:
   1400/1260 - 378/1260 = 1400 - 378/1260 = 1022/1260
5. After reducing the fraction, the answer is 73/90

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