Add 7/90 and 15/42
7/90 + 15/42 is 137/315.
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,
7/90 = 7 × 7/90 × 7 = 49/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
15/42 = 15 × 15/42 × 15 = 225/630 - Add the two like fractions:
49/630 + 225/630 = 49 + 225/630 = 274/630 - 274/630 simplified gives 137/315
- So, 7/90 + 15/42 = 137/315
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