Add 4/70 and 15/90
4/70 + 15/90 is 47/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
4/70 = 4 × 9/70 × 9 = 36/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
15/90 = 15 × 7/90 × 7 = 105/630 - Add the two like fractions:
36/630 + 105/630 = 36 + 105/630 = 141/630 - 141/630 simplified gives 47/210
- So, 4/70 + 15/90 = 47/210
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