Add 30/90 and 14/70
30/90 + 14/70 is 8/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
30/90 = 30 × 7/90 × 7 = 210/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
14/70 = 14 × 9/70 × 9 = 126/630 - Add the two like fractions:
210/630 + 126/630 = 210 + 126/630 = 336/630 - 336/630 simplified gives 8/15
- So, 30/90 + 14/70 = 8/15
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