Add 90/40 and 10/42
1st number: 2 10/40, 2nd number: 10/42
90/40 + 10/42 is 209/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
90/40 = 90 × 21/40 × 21 = 1890/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
10/42 = 10 × 20/42 × 20 = 200/840 - Add the two like fractions:
1890/840 + 200/840 = 1890 + 200/840 = 2090/840 - 2090/840 simplified gives 209/84
- So, 90/40 + 10/42 = 209/84
In mixed form: 241/84
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