Answers

Subtract 21/16 from 70/45

1^st number: 1 25/45, 2^nd number: 1 5/16

70/45 - 21/16 is 35/144.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 16 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 45 × 16 = 720,
   70/45 = 70 × 16/45 × 16 = 1120/720
3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
   21/16 = 21 × 45/16 × 45 = 945/720
4. Subtract the two like fractions:
   1120/720 - 945/720 = 1120 - 945/720 = 175/720
5. After reducing the fraction, the answer is 35/144

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