Answers

Add 90/60 and 70/64

1^st number: 1 30/60, 2^nd number: 1 6/64

90/60 + 70/64 is 83/32.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 64 is 960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 960
2. For the 1st fraction, since 60 × 16 = 960,
   90/60 = 90 × 16/60 × 16 = 1440/960
3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
   70/64 = 70 × 15/64 × 15 = 1050/960
4. Add the two like fractions:
   1440/960 + 1050/960 = 1440 + 1050/960 = 2490/960
5. 2490/960 simplified gives 83/32
6. So, 90/60 + 70/64 = 83/32
   In mixed form: 219/32

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