Answers

Add 90/40 and 70/49

1^st number: 2 10/40, 2^nd number: 1 21/49

90/40 + 70/49 is 103/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 49 is 1960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1960
2. For the 1st fraction, since 40 × 49 = 1960,
   90/40 = 90 × 49/40 × 49 = 4410/1960
3. Likewise, for the 2nd fraction, since 49 × 40 = 1960,
   70/49 = 70 × 40/49 × 40 = 2800/1960
4. Add the two like fractions:
   4410/1960 + 2800/1960 = 4410 + 2800/1960 = 7210/1960
5. 7210/1960 simplified gives 103/28
6. So, 90/40 + 70/49 = 103/28
   In mixed form: 319/28

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