Add 42/40 and 90/9
1st number: 1 2/40, 2nd number: 10 0/9
42/40 + 90/9 is 221/20.
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,
90/9 = 90 × 40/9 × 40 = 3600/360 - Add the two like fractions:
378/360 + 3600/360 = 378 + 3600/360 = 3978/360 - 3978/360 simplified gives 221/20
- So, 42/40 + 90/9 = 221/20
In mixed form: 111/20
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