Add 45/75 and 21/18
1st number: 45/75, 2nd number: 1 3/18
45/75 + 21/18 is 53/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
45/75 = 45 × 6/75 × 6 = 270/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
21/18 = 21 × 25/18 × 25 = 525/450 - Add the two like fractions:
270/450 + 525/450 = 270 + 525/450 = 795/450 - 795/450 simplified gives 53/30
- So, 45/75 + 21/18 = 53/30
In mixed form: 123/30
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