Add 45/42 and 9/40
1st number: 1 3/42, 2nd number: 9/40
45/42 + 9/40 is 363/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 42 × 20 = 840,
45/42 = 45 × 20/42 × 20 = 900/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
9/40 = 9 × 21/40 × 21 = 189/840 - Add the two like fractions:
900/840 + 189/840 = 900 + 189/840 = 1089/840 - 1089/840 simplified gives 363/280
- So, 45/42 + 9/40 = 363/280
In mixed form: 183/280
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