Add 27/28 and 9/90
27/28 + 9/90 is 149/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
27/28 = 27 × 45/28 × 45 = 1215/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
9/90 = 9 × 14/90 × 14 = 126/1260 - Add the two like fractions:
1215/1260 + 126/1260 = 1215 + 126/1260 = 1341/1260 - 1341/1260 simplified gives 149/140
- So, 27/28 + 9/90 = 149/140
In mixed form: 19/140
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