Add 45/90 and 42/70
45/90 + 42/70 is 11/10.
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,
45/90 = 45 × 7/90 × 7 = 315/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
42/70 = 42 × 9/70 × 9 = 378/630 - Add the two like fractions:
315/630 + 378/630 = 315 + 378/630 = 693/630 - 693/630 simplified gives 11/10
- So, 45/90 + 42/70 = 11/10
In mixed form: 11/10
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