Answers

Add 56/40 and 45/21

1^st number: 1 16/40, 2^nd number: 2 3/21

56/40 + 45/21 is 124/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 21 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   56/40 = 56 × 21/40 × 21 = 1176/840
3. Likewise, for the 2nd fraction, since 21 × 40 = 840,
   45/21 = 45 × 40/21 × 40 = 1800/840
4. Add the two like fractions:
   1176/840 + 1800/840 = 1176 + 1800/840 = 2976/840
5. 2976/840 simplified gives 124/35
6. So, 56/40 + 45/21 = 124/35
   In mixed form: 319/35

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