Answers

Subtract 35/20 from 90/28

1^st number: 3 6/28, 2^nd number: 1 15/20

90/28 - 35/20 is 41/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 28 × 5 = 140,
   90/28 = 90 × 5/28 × 5 = 450/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   35/20 = 35 × 7/20 × 7 = 245/140
4. Subtract the two like fractions:
   450/140 - 245/140 = 450 - 245/140 = 205/140
5. After reducing the fraction, the answer is 41/28
6. In mixed form: 113/28

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