Add 63/54 and 90/70
1st number: 1 9/54, 2nd number: 1 20/70
63/54 + 90/70 is 103/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
63/54 = 63 × 35/54 × 35 = 2205/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
90/70 = 90 × 27/70 × 27 = 2430/1890 - Add the two like fractions:
2205/1890 + 2430/1890 = 2205 + 2430/1890 = 4635/1890 - 4635/1890 simplified gives 103/42
- So, 63/54 + 90/70 = 103/42
In mixed form: 219/42
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