Add 28/90 and 8/42
28/90 + 8/42 is 158/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
28/90 = 28 × 7/90 × 7 = 196/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
8/42 = 8 × 15/42 × 15 = 120/630 - Add the two like fractions:
196/630 + 120/630 = 196 + 120/630 = 316/630 - 316/630 simplified gives 158/315
- So, 28/90 + 8/42 = 158/315
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