Add 42/90 and 28/35
42/90 + 28/35 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
28/35 = 28 × 18/35 × 18 = 504/630 - Add the two like fractions:
294/630 + 504/630 = 294 + 504/630 = 798/630 - 798/630 simplified gives 19/15
- So, 42/90 + 28/35 = 19/15
In mixed form: 14/15
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