Answers

Subtract 1/21 from 49/45

1^st number: 1 4/45, 2^nd number: 1/21

49/45 - 1/21 is 328/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 21 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   49/45 = 49 × 7/45 × 7 = 343/315
3. Likewise, for the 2nd fraction, since 21 × 15 = 315,
   1/21 = 1 × 15/21 × 15 = 15/315
4. Subtract the two like fractions:
   343/315 - 15/315 = 343 - 15/315 = 328/315
5. In mixed form: 113/315

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