Add 40/70 and 90/54
1st number: 40/70, 2nd number: 1 36/54
40/70 + 90/54 is 47/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
40/70 = 40 × 27/70 × 27 = 1080/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
90/54 = 90 × 35/54 × 35 = 3150/1890 - Add the two like fractions:
1080/1890 + 3150/1890 = 1080 + 3150/1890 = 4230/1890 - 4230/1890 simplified gives 47/21
- So, 40/70 + 90/54 = 47/21
In mixed form: 25/21
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