Add 90/70 and 30/27
1st number: 1 20/70, 2nd number: 1 3/27
90/70 + 30/27 is 151/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 27 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
90/70 = 90 × 27/70 × 27 = 2430/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
30/27 = 30 × 70/27 × 70 = 2100/1890 - Add the two like fractions:
2430/1890 + 2100/1890 = 2430 + 2100/1890 = 4530/1890 - 4530/1890 simplified gives 151/63
- So, 90/70 + 30/27 = 151/63
In mixed form: 225/63
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