Add 18/28 and 45/30
1st number: 18/28, 2nd number: 1 15/30
18/28 + 45/30 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
18/28 = 18 × 15/28 × 15 = 270/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
45/30 = 45 × 14/30 × 14 = 630/420 - Add the two like fractions:
270/420 + 630/420 = 270 + 630/420 = 900/420 - 900/420 simplified gives 15/7
- So, 18/28 + 45/30 = 15/7
In mixed form: 21/7
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