Answers

Subtract 45/24 from 28/70

1^st number: 28/70, 2^nd number: 1 21/24

28/70 - 45/24 is -59/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 24 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 70 × 12 = 840,
   28/70 = 28 × 12/70 × 12 = 336/840
3. Likewise, for the 2nd fraction, since 24 × 35 = 840,
   45/24 = 45 × 35/24 × 35 = 1575/840
4. Subtract the two like fractions:
   336/840 - 1575/840 = 336 - 1575/840 = -1239/840
5. After reducing the fraction, the answer is -59/40

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