Answers

Add 42/90 and 98/70

1^st number: 42/90, 2^nd number: 1 28/70

42/90 + 98/70 is 28/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   42/90 = 42 × 7/90 × 7 = 294/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   98/70 = 98 × 9/70 × 9 = 882/630
4. Add the two like fractions:
   294/630 + 882/630 = 294 + 882/630 = 1176/630
5. 1176/630 simplified gives 28/15
6. So, 42/90 + 98/70 = 28/15
   In mixed form: 113/15

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