Answers

Subtract 36/45 from 70/21

1^st number: 3 7/21, 2^nd number: 36/45

70/21 - 36/45 is 38/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 21 × 15 = 315,
   70/21 = 70 × 15/21 × 15 = 1050/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   36/45 = 36 × 7/45 × 7 = 252/315
4. Subtract the two like fractions:
   1050/315 - 252/315 = 1050 - 252/315 = 798/315
5. After reducing the fraction, the answer is 38/15
6. In mixed form: 28/15

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