Answers

Subtract 21/63 from 30/20

1^st number: 1 10/20, 2^nd number: 21/63

30/20 - 21/63 is 7/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 63 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 20 × 63 = 1260,
   30/20 = 30 × 63/20 × 63 = 1890/1260
3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
   21/63 = 21 × 20/63 × 20 = 420/1260
4. Subtract the two like fractions:
   1890/1260 - 420/1260 = 1890 - 420/1260 = 1470/1260
5. After reducing the fraction, the answer is 7/6
6. In mixed form: 11/6

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