Add 48/70 and 42/90
48/70 + 42/90 is 121/105.
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,
48/70 = 48 × 9/70 × 9 = 432/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Add the two like fractions:
432/630 + 294/630 = 432 + 294/630 = 726/630 - 726/630 simplified gives 121/105
- So, 48/70 + 42/90 = 121/105
In mixed form: 116/105
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