Add 21/90 and 54/27
1st number: 21/90, 2nd number: 2 0/27
21/90 + 54/27 is 67/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
21/90 = 21 × 3/90 × 3 = 63/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
54/27 = 54 × 10/27 × 10 = 540/270 - Add the two like fractions:
63/270 + 540/270 = 63 + 540/270 = 603/270 - 603/270 simplified gives 67/30
- So, 21/90 + 54/27 = 67/30
In mixed form: 27/30
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