Add 18/28 and 45/75
18/28 + 45/75 is 87/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 28 × 75 = 2100,
18/28 = 18 × 75/28 × 75 = 1350/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
45/75 = 45 × 28/75 × 28 = 1260/2100 - Add the two like fractions:
1350/2100 + 1260/2100 = 1350 + 1260/2100 = 2610/2100 - 2610/2100 simplified gives 87/70
- So, 18/28 + 45/75 = 87/70
In mixed form: 117/70
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