Add 42/14 and 72/90
1st number: 3 0/14, 2nd number: 72/90
42/14 + 72/90 is 19/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
42/14 = 42 × 45/14 × 45 = 1890/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
72/90 = 72 × 7/90 × 7 = 504/630 - Add the two like fractions:
1890/630 + 504/630 = 1890 + 504/630 = 2394/630 - 2394/630 simplified gives 19/5
- So, 42/14 + 72/90 = 19/5
In mixed form: 34/5
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