Answers

Add 90/12 and 49/40

1^st number: 7 6/12, 2^nd number: 1 9/40

90/12 + 49/40 is 349/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 12 × 10 = 120,
   90/12 = 90 × 10/12 × 10 = 900/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   49/40 = 49 × 3/40 × 3 = 147/120
4. Add the two like fractions:
   900/120 + 147/120 = 900 + 147/120 = 1047/120
5. 1047/120 simplified gives 349/40
6. So, 90/12 + 49/40 = 349/40
   In mixed form: 829/40

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