Answers

Subtract 7/84 from 90/70

1^st number: 1 20/70, 2^nd number: 7/84

90/70 - 7/84 is 101/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   90/70 = 90 × 6/70 × 6 = 540/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   7/84 = 7 × 5/84 × 5 = 35/420
4. Subtract the two like fractions:
   540/420 - 35/420 = 540 - 35/420 = 505/420
5. After reducing the fraction, the answer is 101/84
6. In mixed form: 117/84

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