Answers

Subtract 48/40 from 28/70

1^st number: 28/70, 2^nd number: 1 8/40

28/70 - 48/40 is -4/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 70 × 4 = 280,
   28/70 = 28 × 4/70 × 4 = 112/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   48/40 = 48 × 7/40 × 7 = 336/280
4. Subtract the two like fractions:
   112/280 - 336/280 = 112 - 336/280 = -224/280
5. After reducing the fraction, the answer is -4/5

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