Add 21/27 and 70/30
1st number: 21/27, 2nd number: 2 10/30
21/27 + 70/30 is 28/9.
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,
21/27 = 21 × 10/27 × 10 = 210/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
70/30 = 70 × 9/30 × 9 = 630/270 - Add the two like fractions:
210/270 + 630/270 = 210 + 630/270 = 840/270 - 840/270 simplified gives 28/9
- So, 21/27 + 70/30 = 28/9
In mixed form: 31/9
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