Add 7/45 and 42/90
7/45 + 42/90 is 28/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
7/45 = 7 × 2/45 × 2 = 14/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Add the two like fractions:
14/90 + 42/90 = 14 + 42/90 = 56/90 - 56/90 simplified gives 28/45
- So, 7/45 + 42/90 = 28/45
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