Answers

Subtract 40/21 from 70/48

1^st number: 1 22/48, 2^nd number: 1 19/21

70/48 - 40/21 is -25/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 21 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 48 × 7 = 336,
   70/48 = 70 × 7/48 × 7 = 490/336
3. Likewise, for the 2nd fraction, since 21 × 16 = 336,
   40/21 = 40 × 16/21 × 16 = 640/336
4. Subtract the two like fractions:
   490/336 - 640/336 = 490 - 640/336 = -150/336
5. After reducing the fraction, the answer is -25/56

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