Add 5/75 and 42/21
1st number: 5/75, 2nd number: 2 0/21
5/75 + 42/21 is 31/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
5/75 = 5 × 7/75 × 7 = 35/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
42/21 = 42 × 25/21 × 25 = 1050/525 - Add the two like fractions:
35/525 + 1050/525 = 35 + 1050/525 = 1085/525 - 1085/525 simplified gives 31/15
- So, 5/75 + 42/21 = 31/15
In mixed form: 21/15
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