Answers

Subtract 80/63 from 1/30

1^st number: 1/30, 2^nd number: 1 17/63

1/30 - 80/63 is -779/630.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 30 × 21 = 630,
   1/30 = 1 × 21/30 × 21 = 21/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   80/63 = 80 × 10/63 × 10 = 800/630
4. Subtract the two like fractions:
   21/630 - 800/630 = 21 - 800/630 = -779/630

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