Answers

Subtract 16/21 from 70/45

1^st number: 1 25/45, 2^nd number: 16/21

70/45 - 16/21 is 50/63.

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,
   70/45 = 70 × 7/45 × 7 = 490/315
3. Likewise, for the 2nd fraction, since 21 × 15 = 315,
   16/21 = 16 × 15/21 × 15 = 240/315
4. Subtract the two like fractions:
   490/315 - 240/315 = 490 - 240/315 = 250/315
5. After reducing the fraction, the answer is 50/63

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