Add 18/27 and 90/70
1st number: 18/27, 2nd number: 1 20/70
18/27 + 90/70 is 41/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 27 × 70 = 1890,
18/27 = 18 × 70/27 × 70 = 1260/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
90/70 = 90 × 27/70 × 27 = 2430/1890 - Add the two like fractions:
1260/1890 + 2430/1890 = 1260 + 2430/1890 = 3690/1890 - 3690/1890 simplified gives 41/21
- So, 18/27 + 90/70 = 41/21
In mixed form: 120/21
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