Answers

Subtract 40/28 from 70/21

1^st number: 3 7/21, 2^nd number: 1 12/28

70/21 - 40/28 is 40/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 28 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   70/21 = 70 × 4/21 × 4 = 280/84
3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
   40/28 = 40 × 3/28 × 3 = 120/84
4. Subtract the two like fractions:
   280/84 - 120/84 = 280 - 120/84 = 160/84
5. After reducing the fraction, the answer is 40/21
6. In mixed form: 119/21

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