Add 42/27 and 21/70
1st number: 1 15/27, 2nd number: 21/70
42/27 + 21/70 is 167/90.
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,
42/27 = 42 × 70/27 × 70 = 2940/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
21/70 = 21 × 27/70 × 27 = 567/1890 - Add the two like fractions:
2940/1890 + 567/1890 = 2940 + 567/1890 = 3507/1890 - 3507/1890 simplified gives 167/90
- So, 42/27 + 21/70 = 167/90
In mixed form: 177/90
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