Add 42/40 and 45/9
1st number: 1 2/40, 2nd number: 5 0/9
42/40 + 45/9 is 121/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
42/40 = 42 × 9/40 × 9 = 378/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
45/9 = 45 × 40/9 × 40 = 1800/360 - Add the two like fractions:
378/360 + 1800/360 = 378 + 1800/360 = 2178/360 - 2178/360 simplified gives 121/20
- So, 42/40 + 45/9 = 121/20
In mixed form: 61/20
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