Answers

Add 21/75 and 56/40

1^st number: 21/75, 2^nd number: 1 16/40

21/75 + 56/40 is 42/25.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 40 is 600
   
   Next, find the equivalent fraction of both fractional numbers with denominator 600
2. For the 1st fraction, since 75 × 8 = 600,
   21/75 = 21 × 8/75 × 8 = 168/600
3. Likewise, for the 2nd fraction, since 40 × 15 = 600,
   56/40 = 56 × 15/40 × 15 = 840/600
4. Add the two like fractions:
   168/600 + 840/600 = 168 + 840/600 = 1008/600
5. 1008/600 simplified gives 42/25
6. So, 21/75 + 56/40 = 42/25
   In mixed form: 117/25

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