Answers

Add 90/50 and 15/70

1^st number: 1 40/50, 2^nd number: 15/70

90/50 + 15/70 is 141/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 70 is 350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 350
2. For the 1st fraction, since 50 × 7 = 350,
   90/50 = 90 × 7/50 × 7 = 630/350
3. Likewise, for the 2nd fraction, since 70 × 5 = 350,
   15/70 = 15 × 5/70 × 5 = 75/350
4. Add the two like fractions:
   630/350 + 75/350 = 630 + 75/350 = 705/350
5. 705/350 simplified gives 141/70
6. So, 90/50 + 15/70 = 141/70
   In mixed form: 21/70

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