Add 42/12 and 1/90
1st number: 3 6/12, 2nd number: 1/90
42/12 + 1/90 is 158/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
42/12 = 42 × 15/12 × 15 = 630/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
1/90 = 1 × 2/90 × 2 = 2/180 - Add the two like fractions:
630/180 + 2/180 = 630 + 2/180 = 632/180 - 632/180 simplified gives 158/45
- So, 42/12 + 1/90 = 158/45
In mixed form: 323/45
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