Add 90/30 and 42/20
1st number: 3 0/30, 2nd number: 2 2/20
90/30 + 42/20 is 51/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
90/30 = 90 × 2/30 × 2 = 180/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
42/20 = 42 × 3/20 × 3 = 126/60 - Add the two like fractions:
180/60 + 126/60 = 180 + 126/60 = 306/60 - 306/60 simplified gives 51/10
- So, 90/30 + 42/20 = 51/10
In mixed form: 51/10
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