Add 24/27 and 21/30
24/27 + 21/30 is 143/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
24/27 = 24 × 10/27 × 10 = 240/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
21/30 = 21 × 9/30 × 9 = 189/270 - Add the two like fractions:
240/270 + 189/270 = 240 + 189/270 = 429/270 - 429/270 simplified gives 143/90
- So, 24/27 + 21/30 = 143/90
In mixed form: 153/90
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