Add 70/90 and 7/70
70/90 + 7/70 is 79/90.
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,
70/90 = 70 × 7/90 × 7 = 490/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
7/70 = 7 × 9/70 × 9 = 63/630 - Add the two like fractions:
490/630 + 63/630 = 490 + 63/630 = 553/630 - 553/630 simplified gives 79/90
- So, 70/90 + 7/70 = 79/90
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